If the amount of work done to transfer 30 coulombs of charge is 300 J, then the potential difference between two ends of battery is________.

900 V

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100 V

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0 V

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10 V

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Solution

The correct option is D
10 V

Given:
Work done W = 300 joule
Charge Q = 30 coulomb
Let V be the potential difference across battery.
Work done is given by $W = V \times Q$
Or, potential difference $V = \frac{W}{Q} = \frac{300}{30} = 10 V$

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If the amount of work done to transfer 30 coulombs of charge is 300 J, then the potential difference between two ends of battery is________.

The correct option is D 10 V Given: Work done W = 300 joule Charge Q = 30 coulomb Let V be the potential difference across battery. Work done is given by W=V×Q Or, potential difference V=WQ=30030=10 V

The correct option is D
10 V

Given:
Work done W = 300 joule
Charge Q = 30 coulomb
Let V be the potential difference across battery.
Work done is given by $W = V \times Q$
Or, potential difference $V = \frac{W}{Q} = \frac{300}{30} = 10 V$