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MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
- The ratio of drift velocity to that of the thermal velocity of an elec...
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- Assume that each atom in a copper wire contributes one free electron. ...
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- Resistance of a conductor increases with the rise of temperature, beca...
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- A piece of germanium and another of copper are stated to experience a ...
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- The resistance of a conductor of a conductor is 5Omega at 50^@C, and ...
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- Kilowatt is the unit of :
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- Watt-hour meter measures
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- In an ordinary electric heater, if the length of the coil is reduced t...
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- A 500 W heating unit is designed to operate from a 115 V line. If the ...
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- If R1 and R2 are respectively the filament resistances of a 200 W bulb...
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- Of the two bulbs in ahouse, one glows brighter than the other. Which ...
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- The product of volt and coulomb is joule. (ii) The produce of volt and...
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- Two heating coils, one of fine wire and the other of thick wire of the...
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- Household electrical appliances are not usually connected in series, b...
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- 40 electric bulb are connected in series across a 220 V supply. After ...
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- Two resistance r1 and r2 (r1< r2) are joined in parallel. The equialen...
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- A metal wire of resistance R is cut into three equal pieces that are t...
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- n equal resistors are first connected in series and then connected in ...
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- n conductors, each of resistance r, when connected in parallel, give a...
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- When an unknown resistance and a resistance of 4Omega are connected in...
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