Dipole in Non-Uniform Electric Field – Rankers Physics

Electric Dipole: Practice Problem & Solution

Assertion (A): When a dipole is placed in a non- uniform electric field dipole must experience non zero force and torque. Reason (R): Electric dipole is in stable equilibrium in non uniform electric field.  
(1) Both (A) & (R) are true and the (R) is the correct explanation of the (A)
(2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(3) (A) is true but (R) is false
(4) Both (A) and (R) are false

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Electric Dipole. Understanding the underlying formula is key to arriving at the correct answer below:

In a non-uniform field, `\( +q \)` and `\( -q \)` experience different forces, leading to a net force and torque. Thus (A) is true. However, a dipole is generally not in stable equilibrium in a non-uniform field, so (R) is false.

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