Current Electricity

Related Questions

• Consider four circuits shown in the figure below. In which circuit power dissipated is greatest (Neglect the internal resistance of the power supply)

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• A current of 2.0 ampere passes through a cell of e.m.f. 1.5 volts having internal resistance of 0.15 ohm. The potential difference measured, in volts, across both the ends of the cell will be

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• For what value of unknown resistance X, the potential difference between B and D will be zero in the circuit shown in the figure

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• An infinite sequence of resistance is shown in the figure. The resultant resistance between A and B will be, when ${R_1} = 1\,ohm$ and ${R_2} = 2\,ohm$

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• The internal resistance of a cell of e.m.f. 12V is $5 \times {10^{ - 2}}\,\Omega $. It is connected across an unknown resistance. Voltage across the cell, when a current of 60 A is drawn from it, is

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