Consider a disk of radius 4.9 cm, having a uniformly distributed charge of +6.1 μc. the value of the coulomb constant is 8.98755 x 10 n m2/c2 compute the magnitude of the electric field at a point on the axis and 3.1 mm from the center answer in units of n/c.

the electric field is 42.8×10^6 N/C

Explanation:

let k be the coulomb constant, Q be the charge distribution , R be the radius of the disk and x be the distance from the center.

k = 8.98755×10^9 N×m^2/c^2

Q = 6.1×10^-6 C

R = 4.9×10^-2 m

x = 3.1×10^-3 m

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