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Alexeev081 [22]
4 years ago
14

Assume we are given an electric field set up by an unknown charge distribution. U0 is the amount of work needed to bring a point

charge of charge q0 in from infinity to a point P. If the charge q0 is returned to infinity, how much work would it take to bring a new charge of 4 q0 from infinity to point P?
Physics
1 answer:
Vadim26 [7]4 years ago
6 0

Answer:

4U_0

Explanation:

We are given that

Amount of work needed to bring a point charge q0 from infinity to a point P=U_0

We know that potential at point P=V=\frac{U}{q}

U=Vq

Where U=Amount of work needed to bring a point charge q from infinity to a point P

Initially ,V=\frac{U_0}{q_0}

New charge, q=4q_0

Then, work done,U=\frac{U_0}{q_0}\times (4q_0)=4U_0

Hence, the amount of  work needed to bring a new charge 4q0 from infinity to point P=4U_0

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