Electrostatics Question 410

Question: Three identical point charges, are placed at the vertices of an isosceles right angled triangle. Which of the numbered vectors coincides in direction with the electric field at the mid-point M of the hypotenuse [AMU 2000]

Options:

A) 1

B) 2

C) 3

D) 4

Show Answer

Answer:

Correct Answer: B

Solution:

EA = Electric field at M due to charge placed at A EB = Electric field at M due to charge placed at B EC = Electric field at M due to charge placed at C , |EB|=|EC|, so net electric field at M, Enet=EA; in the direction of vector 2.



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