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Current Electricity

Current Electricity
The current in the circuit having constant resistance is tripled. The power increases

9 times
1/3 times
3 times
1/9 times

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Current Electricity
The example of non-ohmic resistance is

Carbon resistance
tungsten wire
Copper wire
Aluminium wire

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Current Electricity
A copper wire has a resistance of 10 Ω. It is stretched by one-tenth of its original length. Then its resistance will be

12.1 Ω
11 Ω
9 Ω
10 Ω

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Current Electricity
Resistance of a carbon filament lamp _______ as the applied voltage increases.

Decreases
Increases
Remains same
None of the listed here

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Current Electricity
When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of the heater will

Decrease
Remain constant
None of these
Increase

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Current Electricity
Eureka has _______ temperature co-efficient of resistance.

Negative
Almost zero
None of the listed here
Positive

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MORE MCQ ON Current Electricity

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