Question

A bar magnet of lenght 10 cm and pole strength of 2 Am makes an angle of 60 with a uniform magnetic field of induction B=50 T. the couple acting on it is?

Answer 1

The couple acting on the bar magnet is 10 Nm.

Step-by-step explanation:

The couple acting on the bar magnet can be calculated using the formula: couple = pole strength * magnetic field * length * sin(angle). In this case, the pole strength is 2 Am, the magnetic field is 50 T, the length is 10 cm (or 0.1 m), and the angle is 60 degrees. Plugging these values into the formula, we get:

couple = 2 Am * 50 T * 0.1 m * sin(60)

couple = 10 Nm

Therefore, the couple acting on the bar magnet is 10 Nm.