Find E and E infinity A ring of charge is centered at the origin in the vertical

Question

Find E and E infinity

A ring of charge is centered at the origin in the vertical direction. The ring has a charge density of lambda = 5.46 times 10-6 C/m and a radius of R = 2.01 cm. Find the total electric field, E, of the ring at the point P = (1.10 m, 0.00 m). The Coulomb force constant is k = 1/(4 pi epsilon 0) = 8.99 times 109 N m2/C2. Find the expression for the electric field, E infinity, of the ring as the point P becomes very far from the ring (x >> R) in terms of the radius R, the distance x, the total charge on the ring q, and the constant k = 1/(4 pi epsilon 0).

Explanation / Answer

1)5120.65N/c

2)kq/x^2

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