Rate of charges of torque `tau` with deflection theta` is maximum for a magnet susended freely in a uniform magnetic field of induction B, when

The rate of change of torque 'tau' with deflection theta is maximum for a magnet suspended freely in a uniform magnetic field of induction B when theta is equal to

The rate of change of torque 'tau' with deflection theta is maximum for a magnet suspended freely in a uniform magnetic field of induction B when theta is equal to

Derive the equation of torque on a magnetic needle in a uniform magnetic field.

Compute the torque experimenced by a magnetic needle in a uniform magnetic field.

In case of a uniform magnetic field, the lines of magnetic induction are