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Current Electricity

Current Electricity
Temperature coefficient of resistance is expressed in terms of

mhos/ohm°C
mhos/°C
ohms/°C
ohms/ohm°C

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Current Electricity
Electric current is a

Number only
Vector quantity
Sometimes scalar and sometimes vector
Scalar quantity

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Current Electricity
SI unit of power is

Henry
Watt-hour
Watt
Coulomb

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Current Electricity
Resistance of a tungsten lamp _____ as applied voltage increases.

Decreases
Remains same
None of the listed here
Increases

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Current Electricity
The flow of current in solids is due to

Electrons
Nucleus
Atoms
Electrons and ions

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Current Electricity
Which of the following statement is true both for a series and a parallel D.C. circuit?

Power are additive
Elements have individual currents
Currents are additive
Voltages are additive

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