Question

A dipole is kept in non-uniform electric field as shown in figure. Net force on it in shown position is

• A. equal to zero
• B. not equal to zero
• C. may equal to zero
• D. may not equal to zero

Answer 1

The correct option is B not equal to zero

FBD of dipole in non-uniform electric field is shown in figure.


As the electric field is converging toward right i.e., the distance between the electric field lines decreases.
Hence, the electric field strength increases toward right.

So, $E_2>E_1$

$\Rightarrow q{E}_2>q{E}_1$

$\Rightarrow F_2>F_1$

Thus, net force, $F=F_2-F_1\ne 0$

Therefore, option $\left(b\right)$ is correct.