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The resistance whose V-I graph is given below is. Electricity MCQ Question 7. The equivalent resistivity for the same area is. Two devices are connected between two points say A and B in parallel. The physical quantity that will remain the same between the two points is a current b voltage c resistance d None of these. Answer: b Explanation: b In parallel combination, voltage remains same across two points. Electricity Class 10 MCQ With Answer: cExplanation: c In parallel combination, the equivalent resistance is smaller than the least resistance used in the circuit.
The equivalent resistivity for the same length and area is. Answer: b Explanation: b In parallel, potential difference across each resistor will remain same. When connected in parallel, gives 2. The resistance of hot filament of the bulb is about 10 times the cold resistance. What will be the resistance of W V lamp, when not in use? Answer: c Explanation:. If P and V are the power and potential of device, the power consumed with a supply potential V 1 is.
A coil in the heater consume power P on passing current. Answer: d Explanation:. A fuse wire repeatedly gets burnt when used with a good heater. It is advised to use a fuse wire of a more length b less radius c less length d more radius. Answer: d Explanation: d In order to get the working of heater properly, fused wire of higher rating must be used. A cooler of W, volt and a fan of W, volt are to be used from a household supply. The rating of fuse to be used is a 2.
Current drawn from the supply,. A cell, a resistor, a key, and an ammeter are arranged as shown in the circuit diagrams. The current recorded in the ammeter will be [NCERT Exemplar Problems] a maximum in i b maximum in ii c maximum in iii d same in all the cases. Answer: d Explanation: d Ammeter is always connected in series with in the circuit. The reading is independent from its location. A current of 1 A is drawn by a filament of an electric bulb.
Number of electrons passing through a cross-section of the filament in 16 seconds would be roughly [NCERT Exemplar Problems] a 10 20 b 10 16 c 10 18 d 10 Answer: d Explanation: d Series combination provide the maximum resistance. A cylindrical conductor of length l and uniform area of cross-section A Ncert Questions Of Class 10th Related has resistance R. A student carries out an experiment and plots the V-I Class 10th Ncert Questions Result graph of three samples of nichrome wire with resistances R 1 R 2 and R 3 respectively.
Which of the following is hue? Answer: c Explanation: c Current is inversely proportional to the resistance for the same potential. The resistivity does not change if [NCERT Exemplar Problems] a the material is changed b the temperature is changed c the shape of the resistor is changed d both material and temperature are changed.
Answer: c Explanation: c The resistivity does not change if the shape of resistor is changed because nature of material will remain same. Electric potential is a: a scalar quantity b vector quantity c neither scalar nor vector d sometimes scalar and sometimes vector. Electricity Question Which one of the following methods is ideal for controlling land degradation in coastal areas and in deserts?
Which type of soil is suitable for the growth of cashew nut? Arid soils are less fertile as i it lacks humus and moisture ii it has high salt content iii it is sandy in nature iv it is rich in Iron a i and ii b ii and iii c iii and iv d i and iii.
Ploughing along the contour lines can a accelerate the flow of water. Bad lands or ravines are found in a Chenab basin b Chambal basin c Ganga basin d Godavari basin. Non-renewable ii Under which of the following type of resource can tidal energy be put? Non-recyclable iii Which one of the following is the main cause of land degradation in Punjab? Overgrazing iv In which one of the following states is the terrace cultivation practiced? Uttaranchal v In which one of the following states is the black soil found?
Three main features of this type of soil are as follows : The alluvial soil consists of various proportions of sand, silt, and clay. These soils are very fertile. Due to its high fertility, regions of alluvial soils are intensively cultivated and densely populated. These soils contain an adequate proportion of potash, phosphoric acid, and Class 10th Life Processes Ncert Questions lime which are ideal for the growth of sugarcane, paddy, wheat, and other cereal and pulse crops. This is called contour ploughing.
Terrace cultivation: Steps can be cut out on the slopes making terraces. Terrace cultivation restricts erosion. Strip cropping: Large fields can be divided into strips. Strips of grass are left to grow between the crops. This breaks up the force of the wind. This is strip cropping. Multiple Choice Questions 1. Soil formed by intense leaching is a Alluvial soil b Red soil c Ncert Book Questions For Class 10th List Laterite soil d Desert 8.
Method of growing long strips of grass between the crops refers to a Contour ploughing b Terrace farming c Strip cropping d Crop rotation Territorial waters of India extends to a 10 Nautical miles b 15 Nautical miles c 12 Nautical miles d kilometres Gandhi d Sunder Lai Bhauguna Resources which are non-renewable but can be recycled are called a Renewable resources b Non-renewable resources c Recyclable resources d Biotic resources Land left without cultivation for one or less than one agricultural year is called a Culturable waste land b Current fallow land c Waste land d None of the above The factor responsible for maximum land degradation is ������ a Human activities b Wind c Salinity d Soil erosion Soil is formed by the process of a Denudation b Gradation c Weathering d Erosion The old alluvial soil is known as ������ a Bangar b Bhabbar c Khadar d Regur The denudation of the soil cover and washing down of soil by various agents are known as ������ a Weathering b Gradation c Soil erosion d Soil conservation Terrace cultivation can be used to control soil erosion in a Desert regions b Hill slopes c Valleys d Plains Erosion of the top soil when water flows as a sheet over large areas down the slope is called a Gully erosion b Badlands c Soil erosion d Sheet erosion Arid soils are less fertile as i it lacks humus and moisture ii it has high salt content iii it is sandy in nature iv it is rich in Iron a i and ii b ii and iii c iii and iv d i and iii RD Sharma Class 12 Solutions.
Export of manufactured goods expands: a Only trade and commerce b Brings in much needed foreign exchange c Both a and b d None of the above. Answer: c Both a and b Export of manufactured goods expands trade and commerce and brings in much needed foreign exchange. Agriculture and industry are: a Exclusive to each other b Not-exclusive to each other c Not inter-related to each other d None of the above. Answer: b Not-exclusive to each other Agriculture and industry are not exclusive to each other.
Cotton, jute, silk, sugar, etc. Answer: c Agro based industries All are produced from agricultural products and therefore known as agro-based industries. The only industry in the country which is self reliant and complete in the value chain is: a Agro based industry b Heavy industry c Textile industry d None of the above.
Answer: c Textile industry Textile industry is the only industry in the country which is self reliant and complete is the value chain. Today there are nearly �����������. Answer: a Today, there are nearly cotton and human made fibre textile mills in the country. India exports yarn to: a Germany b China c Pakistan d Japan. Which among the following countries is the largest exporter of raw jute and jute goods: a India b Pakistan c Sri Lanka d Bangladesh.
Most of the jute mills are located in West Bengal, mainly along the banks of ������������. The economic strength of a country is measured by the development of manufacturing industries.
In the present day world of globalisation our industry needs to be more efficient and competitive. Many industries tend to come together to make use of the advantages offered by the urban centres known as agglomeration economies.
Our traditional industries suffered a setback during the colonial period because they could not compete with the mill-made cloth from England.
The handspun khadi provides large scale employment to weavers in their homes as a cottage industry. The jute industry supports 2. The raw material used in the sugar industry is bulky and in haulage its sucrose content reduces. In , India was the largest exporter of steel which accounted for 2.
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