Nichrome wire is an alloy of
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Electrical Engineering · all questionsCurrent Electricity
Current Electricity
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Resistance of 220 V, 100 W lamp will be
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The S.I. unit of power is
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A thermistor has
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All of the following are equivalent to watt except
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Copper wire of certain length and resistance is drawn out to three times its length without change in volume, the new resistance of wire becomes
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Bulbs in street lighting are all connected in
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An electric filament bulb can be worked from
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With rise in temperature the resistance of semiconductors
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When a voltage of one volt is applied, a circuit allows one micro ampere current to flow through it. The conductance of the circuit is
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You have to replace 1500 ω resistor in radio. You have no 1500 ω resistor but have several 1000 ω ones which you would connect
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Which of the following materials has a negative temperature coefficient of resistance?
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Which of the following material has nearly zero temperature coefficient of resistance?
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Conductance: mho ::
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The thickness of insulation provided on the conductor depends on
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All good conductors have high
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What will be energy used by the battery if the battery has to drive 6.28 x 1018 electrons with potential difference of 20 V across the terminal?
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Which is the best conductor of electricity?
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Heat in a conductor is produced on the passage of electric current due to
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Resistance of carbon filament lamp as the applied voltage increases.
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