The figure below shows three small, charged spheres, all lying along the horizontal axis. Sphere A, at left, has a 6.90 nC charge. Sphere B has a 1.40 nC charge and is 3.00 cm to the right of A. Sphere C has a  −2.80 nC  charge and is 2.00 cm to the right of B. Find the magnitude (in N) and direction of the net electric force on each of the spheres. Three charges lie along a horizontal line. A positive charge labeled qA is on the left. 3.00 cm to its right is a positive charge labeled qB. 2.00 cm to the right of qB is a negative charge labeled qC. Net Force on A magnitude Ndirection    Net Force on B magnitude Ndirection    Net Force on C magnitude Ndirection

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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.