Current Electricity

Related Questions

• The resistance of 1 A ammeter is $0.018\,\Omega $. To convert it into 10 A ammeter, the shunt resistance required will be

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• A cell of internal resistance r is connected to an external resistance R. The current will be maximum in R, if

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• The potential difference in open circuit for a cell is 2.2 volts. When a 4 ohm resistor is connected between its two electrodes the potential difference becomes 2 volts. The internal resistance of the cell will be

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• When a piece of aluminium wire of finite length is drawn through a series of dies to reduce its diameter to half its original value, its resistance will become

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• We have two wires A and B of same mass and same material. The diameter of the wire A is half of that B. If the resistance of wire A is 24 ohm then the resistance of wire B will be

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