Question

Four equal charges q are brought from infinity to the four corners of a A,B,C,D of a square of side a. calculate the workdone on each corners and find total potential at centre.?in detail ​

Answer 1

Explanation:

Four charges Q are putted on the corners of the square,

So, at the centre O of the square due to four equal charges Q at the corners, potential

V=

4πϵ

0

(a

2

)/2

4Q

=

πϵ

0

a

2

q

∴W

0∞

=−W

∞0

So, Work done in carrying a charge −q from its centre to infinity is

=−(−q)V=

πϵ

0

a

2

q

2

solution