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Current Electricity

Current Electricity
SI unit of power is

Watt
Henry
Coulomb
Watt-hour

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Current Electricity
Electric current is a

Vector quantity
Number only
Sometimes scalar and sometimes vector
Scalar quantity

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Current Electricity
Ohm's law is not applicable to

High voltage circuits
Circuits with low current densities
Carbon resistors
Vaccum tubes

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

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

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Current Electricity
The example of non-ohmic resistance is

tungsten wire
Aluminium wire
Copper wire
Carbon resistance

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Current Electricity
E. M. F. In a circuit

Increases circuit resistance
Maintains potential difference
None of the listed here
Decrease circuit resistance

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