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प्रश्न
An electric bulb is marked '100 W, 250 V'. What information does this convey?
उत्तर
It means that if the bulb is lighted on a 250 V supply, it consumes 100 W electrical power (which means 100J of electrical energy is converted in the filament of bulb into the light and heat energy in 1 second).
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संबंधित प्रश्न
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(a) 2.6 × 1019 electrons
(b) 6.2 × 1019 electrons
(c) 2.65 × 1018 electrons
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(a) Draw a circuit diagram to represent this. Add an arrow to indicate the direction of conventional current flow in the circuit.
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(c) Calculate the current that flows from the battery?
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(i) The current through the battery,
(ii) The p.d. between the terminals of the battery.
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