Current Electricity

Related Questions

• Find the equivalent resistance between the points a and b

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• When a resistance of 2 ohm is connected across the terminals of a cell, the current is 0.5 A. When the resistance is increased to 5 ohm, the current is 0.25 A. The e.m.f. of the cell is

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• If $n,\,e,\,\tau$ and m respectively represent the density, charge relaxation time and mass of the electron, then the resistance of a wire of length $l$ and area of cross-section $A$ will be

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• Five equal resistances each of value R are connected in a form shown alongside. The equivalent resistance of the network

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• Three resistances of magnitude 2, 3 and 5 ohm are connected in parallel to a battery of 10 volts and of negligible resistance. The potential difference across $3\,\Omega$ resistance will be

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