Question

The work done in rotating a dipole of dipole moment p through an angle 180° from direction of uniform electric field E is: ​

Answer 1

Answer:

HOPE IT HELPS !!

Explanation:

Work done due to dipole =W=−pEcosθ where p= dipole moment, E= electric field

Here, W=W  

(180)

​

−W  

(0)

​

=(−pEcos180)−(−pEcos0)=pE+pE=2pE

Ans: (B)