Current Electricity

Related Questions

• What will be the equivalent resistance between the two points A and D

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• There are two electric bulbs of 40 W and 100 W. Which one will be brighter when first connected in series and then in parallel,

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• A battery of e.m.f.E and internal resistance r is connected to a variable resistor R as shown here. Which one of the following is true

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• The potential difference across the 100$\Omega$ resistance in the following circuit is measured by a voltmeter of 900 $\Omega$ resistance. The percentage error made in reading the potential difference is

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• A thick wire is stretched so that its length become two times. Assuming that there is no change in its density, then what is the ratio of change in resistance of wire to the initial resistance of wire

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