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Current Electricity

Current Electricity
All good conductors have high

Conductance
Reluctance
Thermal conductivity
Resistance

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Current Electricity
If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes

0.6 ohm
1.0 ohm
0.8 ohm
0.4 ohm

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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
Capacitor
Reactor
Inductor

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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
Negative
Positive
Zero

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Current Electricity
Ohm's law is not applicable to

High currents
Small resistors
Semi-conductors
Dc circuits

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Current Electricity
All of the following are equivalent to watt except

(Amperes) ohm
Amperes × volts
Amperes/volt
Joules/sec.

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MORE MCQ ON Current Electricity

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