The electric potential at a point in an electric field is 10⁴ V. If a charge of +100 µC is brought from infinity to this point, what would be the amount of work done on it? Ans.(1 J)



Given Data:


Electric Potential = V = 10⁴ V

Total Charge = Q = 100 µC = 100 𝐱 10⁻⁶ C 

To Find:


Amount of Work done = W = ? 

Solution:

We know that

V = `\frac{W}{q}`

or

W = qV

by putting values

W = 10² 𝐱 10⁻⁶ C ｘ 10⁴ V

W = 10²⁻⁶⁺⁴ V

W = 10⁰ J

W = 1 J ---------------Ans.

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