There is a system of 3 point charges that are placed in a straight line equally spaced. q2 is the leftmost charge, q3 is the middle charge whose value is unknown, and q1 is the rightmost charge. What is the value and sign of q3 if the force exerted by q1 on q2 is F12 and the force exerted by q3 on q2 is F32.

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.