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CURRENT ELECTRICITY QUIZ

Conductivity is the reciprocal of

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The electrical energy required to heat a bucket of water to a certain temperature is 4 kWh. If the heat losses are 20 percent, the energy input is

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When current flows through heater coil it glows but supply wiring does not glow because

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In an electric kettle water boils in 10 m minutes. It is required to boil the boiler in 15 minutes, using same supply mains

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One Newton meter is same as

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A wire having very high value of conductance is said to be

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Two resistances Rl and Ri are connected in series across the voltage source where Rl > Ri. The largest drop will be across

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No current flow between two charged bodies if they have same

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Ohm's law is not applicable to

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With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals

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