Question

Problem 3 A charge Q is placed at the centre of the square of side 3.90 cm, at the corners of which four identical charges qC are placed. Find the value of the charge Q so that the whole systemis in equilibrium Oa! Submit Answer Tries 0/6

Answer 1

Concept:- here we use Coulomb's law of force between charges to find the forces on a charge in component form along coordinate axes and then add them to zero,

for equi libmum, ora o each charge must be eaual to 2eno, Lt us considszA charge on upper nght corwuz Force dus charge at corner A is レ YR6a2 | Fa, 지 which means force du to & on a is fouwaras olistanie pomm 2

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