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Earn 100
The device or substances which DO NOT obey ohm's law is/are
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Important Questions on Current Electricity
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What will be the resistance of a wire at 0 degree celsius, if its resistance is at degree celsius and at degree celsius?
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The resistance of the platinum wire of a platinum resistance thermometer at the ice point is and at steam point is . When the thermometer is inserted in a hot bath, the resistance of the platinum wire will be . Calculate the temperature of the bath.
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A cell of negligible internal resistance and emf is connected to a series combination of and . The potential difference across resistance is
HARD
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Twelve wires, each of resistance are connected to form a cube. Find the equivalent resistance between the adjacent corners of any face of the cube
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What will be the maximum number of bulbs in parallel that can be turned on when a house wiring supplied with a supply line is protected by a ampere fuse?
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An electric bulb is rated and . What is the power consumed by it when operated on
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A galvanometer can work as a voltmeter by connecting
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Galvanometer can be converted into ammeter by
