Current Electricity

Related Questions

• A voltmeter having resistance of 50 × 103ohm is used to measure the voltage in a circuit. To increase the range of measurement 3 times the additional series resistance required is

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• A 50V battery is connected across a 10 ohm resistor. The current is 4.5 amperes. The internal resistance of the battery is

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• An electron (charge = $1.6 \times 10^{–19}$ coulomb) is moving in a circle of radius $5.1 \times 10^{–11} m$ at a frequency of $6.8 \times 10^{15}$ revolutions/sec. The equivalent current is approximately

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• In the figure given the value of $X$ resistance will be, when the p.d. between B and D is zero

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• The total current supplied to the circuit by the battery is

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