#### A rectangular coil of length 0.12 m and width 0.1 m having 50 turns of wire is suspended vertically in a uniform magnetic field of strength 0.2 Weber/m2. The coil carries a current of 2 A. If the plane of the coil is inclined at an angle of 30° with the direction of the field, the torque required to keep the coil in stable equilibrium will be : Option 1) 0.20 Nm Option 2) 0.24 Nm Option 3) 0.12 Nm Option 4) 0.15 Nm

As learnt in concept

Deflecting torque -

- wherein

Deflecting torque always has the maximum value

T=NIASin

T=0.20 N.mt

Option 1)

0.20 Nm

Option 2)

0.24 Nm

Option 3)

0.12 Nm

Option 4)

0.15 Nm