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Two point charges 5 xx 10^(-8) C and 3 x...

Two point charges `5 xx 10^(-8) C` and `3 xx 10^(-8) C` are locate 16 m apart. At what points on the line joining the two charges is the electric potential zero ?

Text Solution

Verified by Experts

`V = (1)/(4 pi epsi_0) q/r`
Between the two charges
`(1)/(4pi epsi_0 )(q_1)/(x) = (1)/(4pi epsi_0) ((q_2)/(16-x))`
10 cm from +ve charge
Outside the two charges
`(1)/(4pi epsi_0 ) (q_1)/(x) = (1)/(4pi epsi_0) ((q_2)/(16 + x))`
40 cm from +ve charge
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