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Current Electricity

Current Electricity
The rating of a fuse wire is always expressed in

Amperes
Ampere-volts
kWh
Ampere-hours

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Current Electricity
The specific resistance of a metallic conductor ______ with rise in temperature.

Increases
Remains unchanged
Decreases
None of the listed here

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Current Electricity
With rise in temperature the resistance of pure metals

Remains constant
Decreases
Increases
First increases and then decreases

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Current Electricity
E. M. F. In a circuit

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

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Current Electricity
Whether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the current.

Resistor
Reactor
Capacitor
Inductor

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Current Electricity
The example of non-ohmic resistance is

tungsten wire
Copper wire
Carbon resistance
Aluminium wire

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