What is the magnitude of magnetic force per unit length on a wire carrying a current of 8 A and making an angle of `30^(@)` with the direction of a uniform magnetic field of 0.15 T?

A square coil of side 10cm consists of 20 turns and carries a current of 12A. The coil is suspended vertically and the normal to the plane of the coil makes an angle of 30^(o) with the direction of a uniform horizontal magnetic field of magnitude 0.80 T. What is the magnitude of torque experienced by the coil?

A square coil of side 10 cm consists of 20 turns and carries a current of 12 A. The coil is suspended vertically and the normal to the plane of the coll makes an angle of 30^@ with the direction of a uniform horizontal magnetic field of magnitude 0.80 T. What is the magnitude of torque experienced by the coll?

What is the force on a wire of length 4.0cm placed inside a solenoid near its centre, making an angle of 60^(o) with its axis? The wire carries a current of 12A and the magnetic field due to the solenoid has a magnitude of 0.25 T

Calculate the force per unit length on a long straight wire carrying a current of 4A due to par allel wire carrying 6A current. Distance between the wires is 3 cm.