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प्रश्न
Tick(✓) the correct choice in the following:
24 watt, 12 volt head lamp is fully lit by connecting it to a 12 volt
battery. The working resistance of the lamp is
पर्याय
5Ω
4Ω
1 Ω
6Ω
2Ω
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उत्तर
6Ω
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संबंधित प्रश्न
Which of the following units could be used to measure electric charge?
(a) ampere
(b) joule
(c) volt
(d) coulomb
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Why should the resistance of:
a voltmeter be very large?
A flash of lighting carries 10 C of charge which flows for 0.01 s. What is the current? If the voltage is 10 MV, what is the energy?
What is international convention of colour coding in a cable?
Define the following:
Semiconductors
A bulb is connected to a battery of p.d. 4 V and internal resistance 2.5 Ω . A steady current of 0.5 A flows through the circuit. Calculate:
The energy dissipated in the bulb in 10 minutes.
For current to flow, one needs art open circuit.
