Calculate the magnitude of the electric field intensity in vacuum at a distance of 25cm from a charge of 5 × 10-3C. [Take 1/4πε0]
-
A.
7.2 × 108NC-1 -
B.
1.8 × 108NC-1 -
C.
5.6 × 108NC-1 -
D.
3.6 × 108NC-1 -
E.
1.5 × 106NC-1
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