Question

An electric dipole is placed in a non uniform electric field increasing along the $+ve$ direction of X - axis. The dipole moves along $\underset{–}{}$ and rotates $\underset{–}{}$

• A. $+ve$ direction of X - axis, clockwise
• B. $-ve$ direction of X - axis, clockwise
• C. $+ve$ direction of X - axis, anti clockwise
• D. $-ve$ direction of X - axis, anti clockwise

Answer 1

The correct option is A $+ve$ direction of X - axis, clockwise

As electric field is more towards positive side of x axis force acting on +q greater than force acting on -q.
total force $F_{net}=q\left(E_1\right(x)-E_2(x\left)\right)where{E}_1>E_{2}aredifferent$
$\therefore$ the dipole will move along the +ve x axis.
Torque is given as $P\times E$
As shown in the diagram the dipole will rotate in clockwise direction.