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Two particles (free to move) with charge...

Two particles (free to move) with charges `+q` and `+4q` are a distance L apart. A third charge is placed so that the entire system is in equilibrium.
(a) Find the location, magnitude and sign of the third charge.
(b) Show that the equilibrium is unstable.

A

`Q=4/9q`(negative)at `l/3`

B

`Q=4/9q`(positive)at `l/3`

C

Q=q (positive) at `l/3`

D

Q = q (negative) at `l/3`

Text Solution

Verified by Experts

The correct Answer is:
A
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