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In a large building, there are bulbs of , bulbs of , fans of and heater of . The voltage of the electric mains is . The minimum capacity of the main fuse of the building will be
(a)
(b)
(c)
(d)

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Important Questions on Current Electricity
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In the circuit shown below, the current in the resistor is

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A galvanometer having a coil resistance of gives a full-scale deflection, when a current of is passed through it. The value of the resistance, which can convert this galvanometer into an ammeter giving a full-scale deflection for a current of is

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The temperature dependence of resistance of and undoped in the temperature range is best-described by

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In the above circuit, the current in each resistance is,

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