MHT CET 2026 Physics question
Three charges q, Q, and +4q are placed in a straight line of length d at points at distance respectively. In order to make the net force on q be zero, the value of Q should be
Answer: (D)
Solution
Place q at , Q at and at . The charge repels q (same sign) with force , directed away from , i.e. toward . For the net force on q to vanish, Q must pull q toward , so Q must be opposite in sign to q (negative) and $
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account