A uniformly charged ring of radius 10.0 cm has a total charge of 89.0 μC. Find the electric field on the axis of the ring at the following distances from the center of the ring. (Choose the x-axis to point along the axis of the ring.) (a) 1.00 cm   î MN/C (b) 5.00 cm   What is the general expression for the electric field along the axis of a uniformly charged ring? î MN/C (c) 30.0 cm   Carefully check the exponent in the denominator of your expression for the electric field. î MN/C (d) 100 cm  î MN/C

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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.