Current Electricity

Related Questions

• In the circuit shown in figure, the current drawn from the battery is 4A. If $10 \Omega$ resistor is replaced by $20 \Omega$ resistor, then current drawn from the circuit will be

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• A voltmeter has a resistance of Gohms and range Vvolts. The value of resistance used in series to convert it into a voltmeter of range nV volts is

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• The resistance of a wire is $10\,\Omega $. Its length is increased by 10% by stretching. The new resistance will now be

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• In the given circuit, the potential of the point E is

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• A wire when connected to 220V mains supply has power dissipation ${P_1}$. Now the wire is cut into two equal pieces which are connected in parallel to the same supply. Power dissipation in this case is ${P_2}$. Then ${P_2}:{P_1}$ is

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