Current Electricity

Related Questions

• For a metallic wire, the ratio $V/i$$(V = $ the applied potential difference, i = current flowing) is

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• A 2 volt battery, a $15\,\Omega $ resistor and a potentiometer of 100 cm length, all are connected in series. If the resistance of potentiometer wire is$5\,\Omega $, then the potential gradient of the potentiometer wire is

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• The effective resistance of two resistors in parallel is $\frac{{12}}{7}\,\,\Omega $ . If one of the resistors is disconnected the resistance becomes $4 \Omega$. The resistance of the other resistor is

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• If in the circuit, power dissipation is 150 W, then R is

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• If a 0.1 % increase in length due to stretching, the percentage increase in its resistance will be

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