Question

Tell me , how is the direction of torque determined here ?

Answer 1

$\underline \bold {Solution:-}$

The direction of torque can be determined by looking at the charge given at the ends of the dipole.

The torque is in opposite direction .

To understand refer to the diagram in the above attachment.

The electric field lines Always originate at the positive charge and terminate at the negative charge. Therefore the postion of charge will be as shown in diagram.

We know that, there is the attraction between the unlike charge whereas repulsion between like charges.

So, the negative terminal of dipole will move towards the positive charge and the positive terminal of dipole will move towards the negative charge.

So, the torque is in opposite direction.