Q 1.8(b): Two point charges and are located 20 cm apart in vacuum. If a negative test charge of magnitude is placed at this point, what is the force experienced by the test charge?
Let Q = C
The force experienced by Q when placed at O due to the charges at A and B will be:
where E' is the net Electric field at the point O.
Q being negatively charged will be attracted by positive charge at A and repelled by negative charge at B. Hence direction of force experienced by it will be in the direction of OA.
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