The potential difference between the two terminals on a battery is 9 volts. How much work (energy) is required to transfer 10 coulombs of charge across the terminals?
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Answers
Answered by
8
Answer:
90J
Explanation:
We know that,
Potential difference (V) = Work done / Charge
According to question,
V = 9V
Charge = 10C
Therefore,
Work done = V * Charge = 9 * 10 = 90 Joules
Answered by
3
Given,
The potential difference between the two terminals of the battery, V = 9V
Charge to be passed = 10C
To find,
Work done to transfer the 10C charge across the terminals
Solution,
Equating the potential difference, charge and the work done,
V = E/Q
⇒ E = QV
where V is the potential difference
E is the work done
and Q is the charge
now, putting the value given in the question, into the equation,
E = 9 × 10 J
∴ 10J work needs to be done in order to transfer the 10C charge across the terminals.
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