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प्रश्न
Define the term kilowatt - hour and state its value in S.I. unit.
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उत्तर
One kilowatt-hour (kWh) is the electrical energy consumed by an electrical appliance of power 1 kW when it is used for one hour.
Its value in SI unit is 1 kWh = 3.6 × 106 J
संबंधित प्रश्न
Which particles constitute the electric current in a metallic conductor?
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An electric bulb of resistance 20 Ω and a resistance wire of 4 Ω are connected in series with a 6 V battery.
Draw the circuit diagram, and calculate:
(a) total resistance of the circuit.
(b) current through the circuit.
(c) potential difference across the electric bulb.
(d) potential difference across the resistance wire.
In the circuit shown below, the voltmeter reads 10 V.

(a) What is the combined resistance?
(b) What current flows?
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Problems for practice:
If 5A current flows through a circuit, then convert the current in terms of microampere?
