१. Emf induced in a coil due to relative motion of magnet is independent of
- Coil resistance
- magnet motion
- number of coil turns
- pole strength of magnet
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२. The resistivity of the conductor depends on
- area of the conductor
- length of the conductor.
- type of material.
- all of these.
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३. The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be
- R Ω
- 2R Ω
- 4R Ω
- 8R Ω
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४. Which of the following are the passive elements?
- Resistor
- Bulb
- Both
- None of above
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५. Two 100W, 200V lamps are connected in series across a 200V supply. The total power consumed by each lamp will be in Watts :-
- 25 W
- 50 W
- 100 W
- 200 W
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