Boni R.

asked • 08/28/17

Find the electric force of circular disk

An annulus is a circular disk with a hole through the center. Suppose an annulus with an outer radius of 9 cm and inner radius of 5 cm is placed horizontally and bears a uniform surface charge density of 325 nC/m2. Find the electric force on a -18 mC test charge placed 12 cm directly above the exact center of the annulus. Assume the same permittivity as in the previous problem.

1 Expert Answer

By:

Arturo O. answered • 08/28/17

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