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Physics · Electrostatic Potential

हिन्दी

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In an external electric field \( \mathbf{E} \), the potential energy of a single point charge \( q \) is \( qV(\mathbf{r}) \), whereas that of an electric dipole \( \mathbf{p} \) is \( -\mathbf{p}\cdot\mathbf{E} \). Reason (R): An electric dipole experiences a net translational force in any non-zero electric field. In the light of the above statements, choose the correct answer from the options given below:

  1. Both (A) and (R) are true and (R) is the correct explanation of (A).
  2. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
  3. (A) is true but (R) is false.
  4. (A) is false but (R) is true.

Correct answer · Option 3

(A) is true but (R) is false.

Explanation

Assertion is true. Reason is false because in a uniform electric field, the net translational force on a dipole is zero (F_net = qE - qE = 0).
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