Two point charges Q1=+4.70 n/C and Q2 =-3.20 n/C are seperated by 45.0 cm (a) What is the electric potential at a point midway between the changes? -----V (b) What is the potential energy of the pair of charges? ----J What is the significiant of the algebraic sign of your answer? Positive work must be done to seperate the charges. Negative work must be done to seperate the charges.

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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.