A uniform rectangular coil of total mass 240 gg and dimensions 0.500m×1.00m0.500m×1.00m is oriented parallel to a uniform 3.30-TT magnetic field (Figure 1). A current of 2.10 AA is suddenly started in the coil.

A uniform rectangular coil of total mass 270 g and dimensions 0.500m×1.00m is oriented parallel to a uniform 3.70-T magnetic field (Figure 1). A current of 2.00 A is suddenly started in the coil.

Find the initial angular acceleration of the coil just after the current is started. Express your answer using two significant figures.

A 195 turn rectangular coil having dimensions of 3.2 cm by 5.4 cm is placed in a uniform magnetic field of magnitude 0.86 T. Find the magnitude of the torque on the coil when the magnetic field makes an angle of 28° with the normal to the plane of the coil.

A 220 turn rectangular coil having dimensions of 3.2 cm by 5.1cm is placed in a uniform magnetic field of magnitude 0.91 T.
a) Find the current in the coil if the maximum torque exerted on itby the magnetic field is 0.11 N · m.

b) Find the magnitude of the torque on the coil when the magneticfield makes an angle of 28° with the normal to the plane of thecoil.