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Work done in moving a charge of $5 Coulombs$ from a point having the potential of $20 V$ to another point having the potential of $30 V$ is [[1]] $J$ .

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Detailed Solution

The work done in moving a charge of

5 C

from a point having the potential of

20 V

to another point having the potential of

30 V

50 J

.
It is given that Charge,

Q = 5 C

and Potential difference,

V = 30 - 20 = 10 V

.
It is known that “the potential difference is equal to the work done in bringing the unit charge from one point to any other point.” Mathematically,

V_{A} - V_{B} = \frac{W}{Q}

Where

V_{A}, V_{B}, W

and

Q

are the potential difference at

A

and

B

, work done and the charge respectively.
On substituting the given value, we get

10 = \frac{W}{5}

\Rightarrow W = 50 J

Hence, the work done is

50 J

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