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प्रश्न
Of the three connecting wires in a household circuit: Which two of the three wires are at the same potential? In which of the three wires should the switch be connected?
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उत्तर
Neutral wire and Earth wire are at same potential and the switch be connected to live wire.
संबंधित प्रश्न
An electric bulb is connected to a 220 V power supply line. If the bulb draws a current of 0.5 A, calculate the power of the bulb.
The SI unit of energy is :
(a) joule
(b) coulomb
(c) watt
(d) ohm-metre
The commercial unit of energy is :
(a) watt
(b) watt-hour
(c) kilowatt-hour
(d) kilo-joule
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Mention three uses of the carbon arc.
The electric bulbs used these days have a coil-coiled filament. State its reason.
How can electric energy consumed by an electric appliance be calculated in kilowatt hour (kWh)?
What is the resistance of an appliance rated at V volt, P watt?
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