Question

Two charges, each of + 16 μC, are placed along a line at a distance r apart. A third charge .Q is placed between them. Determine the position and value of Q so that the system is in equilibrium.

Answer 1

Answer:

r/2

Explanation:

let the ,

let the , 1st charge be. - q(16 ųC)

let the , 2nd charge be. - q(16 ųC)

3rd charge be. -Q

F1 be the force on Q due to 1st charge q

F2 be the force on Q due to 2nd charge q

For the system to be at equilibrium, net force on Q must be zero.

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