Current Electricity

Related Questions

• A nichrome wire 50 cm long and one square millimetre cross-section carries a current of 4A when connected to a 2V battery. The resistivity of nichrome wire in ohm metre is

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• Three unequal resistors in parallel are equivalent to a resistance 1 ohm. If two of them are in the ratio 1 : 2 and if no resistance value is fractional, the largest of the three resistances in ohms is

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• A current of two amperes is flowing through a cell of e.m.f. 5 volts and internal resistance 0.5 ohm from negative to positive electrode. If the potential of negative electrode is 10V, the potential of positive electrode will be

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• A (100 W, 200 V) bulb is connected to a 160 V power supply. The power consumption would be

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• There are two electric bulbs of 40 W and 100 W. Which one will be brighter when first connected in series and then in parallel,

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