A long insulating cylindrical rod has a radius of 2.50 cm and uniform charge density of 120 nC/m³. Determine the potential difference AV= VA – VB between point A located on the surface of the rod and point B (4.50 cm from the axis).

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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.