Interactions between charges

Electricity and Magnetism Level 2

Two charges \(q_1\) and \(q_2\) are separated by a certain distance, and they experience a force of \(36\, \mu\text N\). If the distance between them is increased by \(5\text{ m},\) the force becomes \(25\, \mu\text{N}\).

Find the initial distance between the two charges (in meters).

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