TS EAMCET · Physics · Electrostatics
Charges \(Q\) are placed at the ends of a diagonal of a square and charges \(q\) are placed at the other two corners. The condition for the net electric force on \(Q\) to be zero is
- A \(Q=-2 \sqrt{2} q, q\) being negative
- B \(Q=-\frac{q}{2}\), \(q\) being negative
- C \(Q=2 \sqrt{2} q, q\) being negative
- D \(Q=2 q, q\) being negative
Answer & Solution
Correct Answer
(A) \(Q=-2 \sqrt{2} q, q\) being negative
Step-by-step Solution
Detailed explanation
Net force on \(D\) due to \(A\) and \(B=\frac{K \sqrt{2} Q q}{a^2}\) Force on \(D\) due to \(B=\frac{K Q^2}{2 a^2}\) For net electric field on \(D\) to be zero…
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