A circular annulus like a disk with a hole in the center with inner radius a and outer radius b is centered at the origin in the

Question

A circular annulus like a disk with a hole in the center with inner radius a and outer radius b is centered at the origin in the xy plane The annulus is filled with a uniform charge density o charge area Determine the electric field along the z axis Use k 4 Select the correct answer O E 2nokz 2 3 O E 2 okz 2 1 b 2 1 2 nokz b 2 O E 2nokz 3 2 1 a z 2a 2b OF Image size s ML Max

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