Electrostatics Question 357

Question: There is an electric field E in X-direction. If the work done on moving a charge 0.2C through a distance of 2m along a line making an angle 60 with the X-axis is 4.0, what is the value of E [CBSE PMT 1995]

Options:

A) 3N/C

B) 4N/C

C) 5N/C

D) None of these

Show Answer

Answer:

Correct Answer: D

Solution:

W=qV=qE.d

therefore 4 = 0.2x Ex (2 cos 60o) = 0.2 Ex (2x 0.5) E=40.2=20NC1



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