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Current Electricity

Current Electricity
The example of non-ohmic resistance is

Copper wire
Aluminium wire
Carbon resistance
tungsten wire

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Current Electricity
One Newton meter is same as

One joule second
One watt
Five joules
One joule

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Current Electricity
Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be

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

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Current Electricity
Electrical current is due to the flow of

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

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Current Electricity
Ohm's law is not applicable to

Small resistors
High currents
Dc circuits
Semi-conductors

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Current Electricity
Voltage dependent resistors are used

As current stabilizers
As heating elements
For inductive circuits
To suppress surges

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