Two-point charges are located on the x-axis of a coordinate system: ?1=1.5 ?? is at x = +2.5 cm, and ?2=−2.0 ?? is at x = +4.0 cm. What is the total electric force exerted by: ?1 and ?2 on a charge ?3=4.5 ?? at x = 0?

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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.