Current Electricity

Related Questions

• Through a semiconductor, an electric current is due to drift of

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• The net resistance of a voltmeter should be large to ensure that

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• Two bulbs, one of 50 watt and another of 25 watt are connected in series to the mains. The ratio of the currents through them is

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• Equivalent resistance between A and B will be

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• A galvanometer of 50 ohm resistance has 25 divisions. A current of $4 \times 10^{–4}$ ampere gives a deflection of one division. To convert this galvanometer into a voltmeter having a range of 25 volts, it should be connected with a resistance of

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