1. Find the electric field (magnitude and direction) generated by a ring of radius a with charge distribution (linear density) 1(0) = 10(1 – cos 20) along the central axis of the ring. 2. Derive the asymptotic formula for distance z » a along the axis.
1. Find the electric field (magnitude and direction) generated by a ring of radius a with charge distribution (linear density) 1(0) = 10(1 – cos 20) along the central axis of the ring. 2. Derive the asymptotic formula for distance z » a along the axis.
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