MHT CET · Physics · Electrostatics
Two equally charged small balls placed at a fixed distance experience a force 'F'. A similar uncharged ball after touching one of them is placed at the middle point between the two balls. the force experienced by this ball is
- A \(\frac{F}{2}\)
- B F
- C 2F
- D 4F
Answer & Solution
Correct Answer
(B) F
Step-by-step Solution
Detailed explanation
Initial force between two charged balls: \(F = k \frac{q^2}{d^2}\) After touching an uncharged ball, the first ball and the new ball each have charge \(\frac{q}{2}\). The second original ball retains charge \(q\).
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