+1 vote
in JEE by kratos

Three point charges q, – 4q and 2q are placed at the vertices of an equilateral triangle ABC of side ‘l’ as shown in the figure. Obtain the expression for the magnitude of the resultant electric force acting on the charge q.

1 Answer

+1 vote
by kratos
 
Best answer

The resultant force on charge q at A is

FB = 2Fc

and angle between FB and Fc is 120°, so force on q is

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