A point charge Q1 = +1.50E-5 C exerts an electric force 4.62 N on an unknown point charge Q2 that is 1.20 m from Q1. If Q2 is moved to another position that is 4.80 m from Q1, what is the magnitude of electric force that Q2 exerts on Q1 (in Newtons)?

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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.