Current Electricity

Related Questions

• The arrangement as shown in figure is called as

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• n identical cells each of e.m.f.E and internal resistance r are connected in series. An external resistance R is connected in series to this combination. The current through R is

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• Resistance of 100 cm long potentiometer wire is 10$\Omega$, it is connected to a battery (2 volt) and a resistance R in series. A source of 10 mV gives null point at 40 cm length, then external resistance R is

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• Three resistances of magnitude 2, 3 and 5 ohm are connected in parallel to a battery of 10 volts and of negligible resistance. The potential difference across $3\,\Omega$ resistance will be

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• Two resistances ${R_1}$ and ${R_2}$ when connected in series and parallel with 120 V line, power consumed will be 25 W and 100 W respectively. Then the ratio of power consumed by ${R_1}$ to that consumed by ${R_2}$ will be

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