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Current Electricity

Current Electricity
One Newton meter is same as

One joule second
Five joules
One watt
One joule

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Current Electricity
The hot wire of electric bulb's filament is higher than its cold resistance because the temperature co-efficient of filament is

None of the listed here
Positive
Negative
Zero

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Current Electricity
A wire having very high value of conductance is said to be

Very good conductor
Moderately good conductor
Insulator
None of the listed here

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Current Electricity
Electrical current is due to the flow of

Both positive and negative charges
Neutral particles only
Negative charges only
Positive charges only

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Current Electricity
A 40 W bulb is connected in series with a room heater. If now 40 W bulb is replaced by 100 W bulb, the heater output will

Remains same
Increases
Heater will burn out
Decreases

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Current Electricity
At 0 K, germanium behaves as

A conductor
A ferromagnetic substance
A superconductor
An insulator

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MORE MCQ ON Current Electricity

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