Current Electricity

Related Questions

• A 60 watt bulb operates on 220V supply. The current flowing through the bulb is

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• A wire of resistance R is cut into ‘n’ equal parts. These parts are then connected in parallel. The equivalent resistance of the combination will be

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• Voltmeters V1 and V2 are connected in series across a D.C. line. V1 reads 80 volts and has a per volt resistance of 200 ohms. V2 has a total resistance of 32 kilo ohms. The line voltage is

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• Resistance of tungsten wire at $150^\circ C$ is $133\,\Omega $. Its resistance temperature coefficient is $0.0045/^\circ C$. The resistance of this wire at $500^\circ C$ will be

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• A current of 2 A passing through conductor produces 80 J of heat in 10 seconds. The resistance of the conductor is

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