MHT CET 2024 Physics question

Physics Electric Charges and Fields MHT CET 2024

Charges 3Q, q and Q are placed along x – axis at positions and respectively. When the force on charge Q is zero, the value of q is

(A)
(B)
(C)
(D)Correct

Answer: (D)

Solution

Charge at feels a force from (distance ) and from (distance ). Taking , the force from is repulsive, pointing along , with magnitude . For the net force to vanish, must pull towards , so must be

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Question ID VK-096783