Current Electricity

Related Questions

• If the resistivity of a potentiometer wire be $\rho$ and area of cross-section be A, then what will be potential gradient along the wire

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• A current i passes through a wire of length l, radius of cross-section r and resistivity $\rho$. The rate of heat generation is

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• Resistances of 6 ohm each are connected in the manner shown in adjoining figure. With the current 0.5 ampere as shown in figure, the potential difference ${V_P} - {V_Q}$ is

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• A cable of resistance $10\,\Omega $ carries electric power from a generator producing 250 kW at 10000 volt. The power lost in the cable during transmission is

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• The lead wires should have

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