MCQ
An electric dipole when placed in a uniform electric field $E$ will have minimum potential energy, if the positive direction of dipole moment makes the following angle with $E$
- A$\pi $
- B$\pi /2$
- ✓Zero
- D$3\pi /2$
✓
Answer
Correct option: C.
Zero
c
(c) Potential energy $=$ $-pE\, cos\theta$
When $\theta$ $= 0$. Potential energy $=$ $-\,pE$ (minimum)
(c) Potential energy $=$ $-pE\, cos\theta$
When $\theta$ $= 0$. Potential energy $=$ $-\,pE$ (minimum)
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