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NCERT Solutions for Class 10 Science all chapters in PDF for

So the candidates appearing for different board exams of Class 10 can refer to this NCERT Syllabus and prepare for their examinations which in turn ncert 10th physics chapters now candidates make a grade.

Move to Top of the page. Candidates must possess a detailed knowledge of the NCERT Solutions based on the syllabus to get the good results in the board exams. Chemical Reactions and Equations chapter explains the concepts related to chemical reactions and equations.

Here, you will know different types of reactions taking place in the surrounding. Some important topics explained in this chapter are:. Acids, Bases and Salts chapter mainly explains the difference between acids, bases and salts. It also deals with various types of reactions related to these three forms of chemical compounds. Some important topics involved in this chapter are:. Important topics covered in this chapter are:.

Carbon and its Compounds chapter describes various features ncert 10th physics chapters now carbon element and different compounds formed by it. Give below are the main topics covered in class 10 10th Ncert Physics Pdf 2019 Science Chapter Here students get to learn the carious concepts related to the classification of elements.

Some major concepts discussed in this chapter are:. Life Processes chapter deals with the various biological processes and reaction taking place in organisms. Some major topics covered in this chapter are:. Control and Coordination chapter gives details of different ways in which organisms respond to the stimuli. Here you also get to know about the human nervous system, automatics and voluntary actions, exocrine and endocrine glands.

How do Organisms Reproduce chapter students get to learn different methods of reproduction in plants and animals and get aware of the various methods of birth control in humans. Some of the important topics discussed in this chapter are:. Heredity And Evolution chapter deals with the details related to heredity and evolution of different ncert 10th physics chapters now. Go through the major topics mentioned below:.

Light Reflection and Refraction explains the concepts of reflection and refraction of light. Some important topics to learn from this chapter are:. The Human Eye and Colorful World chapter students get to know each and ncert 10th physics chapters now detail of the human eye from its structure to its working.

Various defects of vision are also discussed. It also explains atmospheric refraction and various phenomena related to it. Some major topics ncert 10th physics chapters now in this chapter are:. Electricity chapter explains ncert 10th physics chapters now current, its ncert 10th physics chapters now and various effects related to it.

Sources of Energy: Different forms of energy and their sources are discussed in this chapter. Some of the main topics explained in this chapter are:. Our Environment chapter deals with various components of environment components and how human activities are affecting the environment. Some of the main topics discussed in this chapter are:.

Sustainable Management of Natural Resources chapter you get to know about the different natural resources, their advantages and conservation efforts. Here main focus should be laid on the following concepts:. You can get them online at our website or else directly click on the quick links available on our page. By preparing with NCERT Solutions for science exams provide you various benefits like Important questions, solved and unsolved exercises for each concept, MCQ questions for class 10 board exams, One-word Ncert 10th physics chapters now, Assertions, Repetitive questions, previous papers, and many more that help students to score good grades in the preboard and board exams.

NCERT Science Solutions provide a detailed analysis of the curriculum and topics which helps class 10 students to study science in a simple way. With a total of 16 Chapters are contained in the latest class 10 Science syllabus, NCERT Solutions for class 10 science is the best resource to understand all 16 chapters easily.

If you have any query regarding this article or NCERT Solutions for Class 10 Science, leave your comments in the comment section below and we will get back to you as soon possible. RD Sharma Class 12 Solutions. Watch Youtube Videos.

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Answer: The potential difference between two points is said to be 1 volt if 1 joule of work is done in moving 1 coulomb of electric charge from one point to the other. Question 3 How much energy is given to each coulomb of charge passing through a 6 V battery? Question 1 On what factors does the resistance of a conductor depend? OR List the factors on which the resistance of a conductor in the shape of a wire depends.

Question 2 Will current flow more easily through a thick wire or a thin wire of the same material, when connected to the same source? Answer: The current will flow more easily through a thick wire than a thin wire of the same material. Larger the area of cross-section of a conductor, more is the ease with which the electrons can move through the conductor. Therefore, smaller is the resistance of the conductor. Question 3 Let the resistance of an electrical component remains constant while the potential difference across the two ends of the component decreases to half of its former value.

What change will occur in the current through it? Answer: When potential difference is halved, the current through the component also decreases to half of its initial value. Question 4 Why are coils of electric toasters and electric irons are made of an-alloy rather than a pure metal? OR Why are alloys commonly used in electric heating devices? Given reason. Question 5 Use the data in Table Thus iron is a better conductor because it has lower resistivity than mercury.

Answer: The required circuit diagram is shown below :. What would be the readings in the ammeter and the voltmeter? Solution: The required circuit diagram is shown on the right.

Answer: When the resistances are connected in parallel, the equivalent resistance is smaller than the smallest individual resistance. What is the resistance of an electric iron connected to the same source that takes as much current as all three appliances, and what is the current through it? Question 3 What are the advantages of connecting electrical devices in parallel with the battery instead of connecting them in series?

Answer: Advantages of connecting electrical devices in parallel with the battery are :. Solution: i Highest resistance can be obtained by connecting the four coils in series. Question 1 Why does the cord of an electric heater not glow while the heating element does? Solution: Heat generated in a circuit is given by I 2 R t. The heating element of an electric heater made of nichrome glows because it becomes red-hot due to the large amount of heat produced on passing current because of its high resistance, but the cord of the electric heater made of copper does not glow because negligible heat is produced in it by passing current because of its extremely low resistance.

Question 2 Compute the heat generated while transferring coulomb of charge in one hour through a potential difference of 50 V. Calculate the heat developed in 30 s. Question 1 What determines the rate at which energy is delivered by a current? Answer: Resistance of the circuit determines the rate at which energy is delivered by a current.

Question 2 An electric motor takes 5 A from a V line. Determine the power of the motor and the energy consumed in 2 h.

Question 1 A piece of wire of resistance R is cut into five equal parts. These parts are then connected in parallel. Question 2 Which of the following terms does not represent electrical power in a circuit? Question 3 An electric bulb is rated V and W. Question 4 Two conducting wires of the same material and of equal lengths and equal diameters are first connected in series and then parallel in a circuit across the same potential difference.

The ratio of heat produced in series and parallel combinations would be : a 1 : 2 b 2 : 1 c 1 : 4 d 4 : 1 Answer: c 1 : 4. Question 5 How is a voltmeter connected in the circuit to measure the potential difference between two points? Answer: A voltmeter is connected in parallel to measure the potential difference between two points.

Question 6 A copper wire has diameter 0. How much does the resistance change if the diameter is doubled? Answer: If a wire of diameter doubled to it is taken, then area of cross-section becomes four times. Question 7 The values of current I flowing in a given resistor for the corresponding values of potential difference V across the resistor are given below : Plot a graph between V and I and calculate the resistance of the resistor.

Solution: The graph between V and I for the above data is given below. The slope of the graph will give the value of resistance. Let us consider two points P and Q on the graph. Question 8 When a 12 V battery is connected across an unknown resistor, there is a current of 2.

Find the value of the resistance of the resistor. Question 9 A battery of 9V is connected in series with resistors of 0. How much current would flow through the 12 Q resistor? Thus 4 resistors are needed to be connect. The equivalent resistance is. Question 12 10th Ncert Physics Book Zero Several electric bulbs designed to be used on a V electric supply line, are rated 10 W.

How many lamps can be connected in parallel with each other across the two wires of V line if the maximum allowable current is 5 A? What are the currents in the three cases? Solution: i When the two coils A and B are used separately. Solution: i The circuit diagram is shown in figure. Question 15 Two lamps, one rated W Ncert 10th Physics Chapters Solution at V, and the other 60 W at V, are connected in parallel to electric mains supply. What current is drawn from the line if the supply voltage is V?

Calculate the rate at which heat is developed in the heater. Question 18 Explain the following: i Why is tungsten used almost exclusively for filament of electric lamps? If the area of cross section of a conductor of fixed length is increased, then resistance decreases because there are more free electrons for movement in conductor. So, they do not become too hot on passing electric current.

Electric current, potential difference and electric current, Ohms law, Resistance, Resistivity factors on which the resistance of a conductor depends; Series combination of resistors, parallel combination of resistors; and its application on daily life; Heating effect of Electric current, electric Power, Interrelation between P, V, and R.

Formulae Handbook for Class 10 Maths and Science. Page What does an electric circuit mean? Electric circuit is a continuous and closed path made of conducting wires, through which the electric current flows. It comprises a cell, ammeter, voltmeter, plug key, etc. Define the unit of current. SI unit of electric current is ampere A. Ampere is the flow of electric charges through an area at the rate of one coulomb per second, i. Question 1: Name a device that helps to maintain a potential difference across a conductor.

Answer: Cell or battery eliminator. Question 2: What is meant by saying that the potential difference between two points is 1 V? Question 3: How much energy is given to one coulomb of charge passing through a 6 V battery Answer:. Question 1: On what factors does the resistance of a conductor depend Answer: Resistance of a conductor depends upon: i Resistivity of the material.

Question 2: Will current flow more easily through a thick wire or thin wire of the same material when connected to the same source? Question 3: Let the resistance of an electrical component remains constant while the potential difference across the two ends of the component decreases to half of its former value. Answer: Hence, the current through an electrical component also becomes half of its previous value. Question 4: Why are the coils of electric toasters and electric irons made of an alloy rather than a pure metal Answer: The coils of electric toaster and electric iron are made of an alloy rather than a pure metal because of the following reasons; i The resistivity of an alloy is higher than that of a pure metal.

Question 5: Use the data in Table Question 2: Redraw the circuit of the above question, putting in an ammeter to measure the current through the resistors and a voltmeter to measure the voltage across the 12 resistor. What would be the reading in the ammeter and the voltmeter? Question 1: Judge the equivalent resistance when the following are connected in parallel.

What is the resistance of an electric iron connected to the same source that takes as much current as all three appliances and what is the current flows through it? Question 3: What are the advantages of connecting electrical devices in parallel with the battery instead of connecting them in series? Answer: Advantages of connecting electrical devices in parallel:.

Answer: a The highest resistance is secured by combining all four coils of resistance in series. Question 1: Why does the cord of an electric heater not glow while the heating element does?

Answer: The cord of an electric heater is made up of metallic wire such as copper or aluminum which has low resistance while the heating element is made up of an alloy which has more resistance than its constituent metals. Question 2: Compute the heat generated while transferring C of charge in one hour through a potential difference of 50 V. Question 3: An electric iron of resistance 20 Q takes a current of 5 A. Question 1: What determines the rate at which energy is delivered by a current?

Answer: Electric power determines the rate at which energy is delivered by a current. Question 2: An electric motor takes 5 A from a V line. Question 1: A piece of wire of resistance R is cut into five equal parts. Question 2: Which of the following terms does not represent electrical power in a circuit? Question 3: An electric bulb is rated V and W. Question 4: Two conducting wires of same material and of equal lengths and diameters are first connected in series and then parallel in a circuit across the same potential difference.

The ratio of heat produced in series and parallel combinations would be a b c d Answer:. Question 5: How is a voltmeter connected in the circuit to measure the potential difference between two points? Question 6: A copper wire has a diameter 0.

Question 7: The values of the current I flowing in a given resistor for the corresponding values of potential difference V across the resistor are given below: Plot a graph between V and I and calculate the resistance of that resistor. Question 8: When a 12 V battery is connected across an unknown resistor, there is a current of 2.

Question 9: A battery of 9 V is connected in series with resistors of 0. Answer: Since all the resistors are in series, the same current, 0. Question Several electric bulbs designed to be used on a V electric supply line, are rated 10 W. Question A hot plate of an electric oven connected to V line has two resistance coils A and B, each of 24 Q resistance, which may be used separately, in series, or in parallel.

Question Two lamps, one rated W at V, and the other 60 W at V, are connected in parallel to electric mains supply. Question An electric heater of resistance 8 f2 draws 15 A from the service mains 2 hours. Question Explain the following.

Answer: a It has high melting point and emits light at a high temperature. Each of them dissipates energy and can withstand a maximum power of 18 W without melting. Find the maximum current that can flow through the three resistors. Question 2: Should the resistance of an ammeter be low or high?

There are about 11 questions in this chapter and there are some exercises as well. So, students will get to learn a lot from these chapters in the best way. This chapter in the science book deals with the passing of genes between different generations. Also, the chapter provides information on the process of sex determination. The chapter has details on the entire concept of Evolution with the help of the Charles Darwin theory.

Students can get familiar with the concepts and then attempt to solve the questions that are provided in the chapter. There are about 12 questions in it along with end exercises as well. After reading this chapter, the students will get to know about the different phenomena that the light has to go through. Refraction and reflection are the important topics in this chapter and there are several explanations to these the laws of refraction and reflection.

There are also some mathematical elements in the chapter that are explained well in our solutions. The chapter includes 17 different questions along with an end exercise for the students. The first 5 questions included in the chapter tend to be objective. This is a chapter that will primarily focus on the human eye structure as well as the various functions that are included in every single part of the eye. Also, there are some explanations regarding the different eye problems that people might have in their life.

There are about 13 questions present in the chapter. Also, there are diagrams that students need to study so that they can score better marks in their exams. This chapter is really important as all the answers are based on the details provided in the chapter.

For this chapter, students will dive into the different concepts of electric current. They will also get to learn important terms such as potential difference, resistance, circuit diagrams, and much more. Also, students will know about the different effects of heating on electrical power and current.

Not to mention that students will get to understand the different symbols used in a circuit diagram. Also, there are some details about the current flow that occurs in a particular circuit and much more. The 13th chapter of Class 10 science deals with important topics such as magnetic fields and different field lines. Also, students can learn about hard rules, the force on a particular type of current conductor, magnetic fields, and circuits.

The chapter is meant to provide an insight into topics such as generators, motors, electromagnetic inductions, and much more. There are 18 questions in the chapter along with a few objective types as well. In the exercises for this chapter, students will also find several numerical solutions.

Students will know about different energy forms that are available to mankind such as non-conventional and conventional forms of energy.

There are comparisons between different energy forms and the explanations are provided in the chapter. Also, students will get to know the importance of using several non-conventional types of energy rather than the conventional options. There are 10 questions in this chapter and some of them are objective types. There are several ecosystems working in the environment and students will get to know about keeping it stable and balanced.

There is also information about ozone layer depletion, food chains, and management of waste. The chapter has a total of 9 questions and 3 are objective ones. The chapter goes through important topics such as management and preservation of different resources that include petroleum, coal, wildlife, forests, and much more. The chapter consists of 7 questions and students can find all the answers to these questions in our PDF files for the solutions.

Unit Name. World of living. Natural Phenomena. Effects of Current. Natural Resources. Total Marks. Type of Questions. Objective Type. Short Answer Type. Long Answer Type. These solutions will help you prior to your exams as you can know more about the marking scheme, question pattern, difficulty level and nature of questions, section-wise marking and so much more.

Here are some benefits of referring to these solutions. By knowing the pattern of different questions that come in the examination, students can easily make sure that their preparation is on point. This way they are more confident and sure about taking the board exam and hence they get to score more marks. It cannot be denied that time management gets better and better with more practice as it helps in boosting the speed of answering the questions during your exams.

So, with total awareness of the answers with the solutions provided by us, you can efficiently manage time. One of the best things about the NCERT solutions that we have for class is that these answers are prepared by teachers and masters who have enough experience in teaching the subject.

Hence, the details and the accuracy of the chapters are undeniable for sure. While students might get anxious during their board exams, with the help of these NCERT solutions, they can easily practice more and more which will further reduce their stress and make sure that they are able to perform well in the exams. The paper consists of questions with a total of 80 marks and includes different questions of varying length and marking.

There are some practical questions too. The paper is divided into three sections A, B, and C. The 1st section has one mark questions while the second section has a few short answer type questions that are of 3 marks and the third section will have long-answer questions which are mostly of 5 marks each. The NCERT Solutions for the Class 10 science questions will provide more understanding and knowledge to the students about the chapters.

With a clear concept, they will get to understand all the important topics and hence will be able to answer the questions asked in the exams in a better way.

Not to mention that it also assists a lot when it comes to increasing the aggregate marks in board exams. It is not a surprise that science is considered to be one of the subjects where students can score the most. Hence, students need to make sure that they are able to have knowledge and details about all the chapters provided in the book of Class 10 Science.

All these solutions and answers are created very carefully under the expertise of masters and professors.

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