Current Electricity

Related Questions

• The specific resistance of manganin is $50 \times {10^{ - 8}}\,ohm \times m$. The resistance of a cube of length $50\,cm$ will be

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• Through a semiconductor, an electric current is due to drift of

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• Resistors of 1, 2, 3 ohm are connected in the form of a triangle. If a 1.5 volt cell of negligible internal resistance is connected across 3 ohm resistor, the current flowing through this resistance will be

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• A battery of 6 volts is connected to the terminals of a three metre long wire of uniform thickness and resistance of the order of 100$\Omega $. The difference of potential between two points separated by 50$cm$ on the wire will be

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• A voltmeter has a range 0-V with a series resistance R. With a series resistance 2R, the range is 0-V'. The correct relation between V and V' is

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