ElectrostaticsMedium
Question
There is a uniform electric field in X-direction. If the work done by external agent in moving a charge of 0.2 C through a distance of 2 metre slowly along the line making an angle of 60o with X-direction is 4 joule, then the magnitude of E is:
Options
A.√3 N/C
B.4 N/C
C.5 N/C
D.20 N/C
Solution
W = Fr cos θ ⇒ ∴ 4 = (0.2) E (2) cos 60o ⇒ ∴ E = 20 N/C.
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