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प्रश्न
How much energy is transferred by a 12 V Power supply to each coulomb of charge which it moves around a circuit?
संख्यात्मक
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उत्तर
The term 'each coulomb' means 'every 1 coulomb'.
So, charge, Q = 1 C
Potential difference, V = 12 V
Now:
V = W/Q
12 = W/1
So, work done, W = 12 x 1 = 12 J
Since the work done on each coulomb of charge is 12 J, the energy transferred to each coulomb of charge is also 12 J.
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