All three objects have a net charge. Objects Z and Y attract one another. Objects Y and X also attract one another, but Z and X repel one another. Which of the following is a possible combination of the signs of the net charges of these three objects? Z is positive, Y is negative, X is positive. Z is positive, Y is positive, X is negative Z is negative, Y is positive, X is positive Z is positive, Y is positive, X is positive

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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.