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 ?

What is the source of a magnetic force in a current carrying wire?

What is the magnetic field at a point 80 mm from a wire carrying current of 6A?

What will be the path of a charged particle moving along the direction of a uniform magnetic field?

A closely wound solenoid of 1000 turns and area of cross-section 2 xx 10^-4 m^2 carries a current of 1 A. It is placed in horizontal axis at 30^@ with the direction of uniform magnetic field of 0.16 T. Calculate magnetic moment of solenoid and torque experienced by the solenoid due to the field.

A square coil of side 10 cm consists of 20 turns and carries 12 A. The coil is suspended vertically and the normal to the plane makes an angle of 30^@ with the direction of uniform magnetic field of 0.8T. The torque acting on the coil is

A square coil of side 10 cm consists of 20 turns and carries a current of 12A. The coil is suspended vertically and the normal to the plane makes an angle of 30^(@) with the direction of uniform magnetic field of 0.8 T. The torque acting on the coil is

A square coil of side 10 cm 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^@ with the direction of a uniform horizontal magnetic field 0.8 T. What is the magnitude of torque experienced by the coil?

A conductor of length lm and carrying current of 1A is placed at an angle of 45^@ to the magnetic field of 1G. The force acting on the conductor is

If the solenoid in the previous question is free to turn about the vertical direction and a uniform horizontal magnetic field of 0.25 T is applied, what is the magnitude of torque on the solenoid when its axis makes an angle of 30^@ with the direction of applied field?

A rectangular coil of 100 turns of length 40 cm and breadth 20 cm carrying a current of 10 A is placed making a angle of 60^@ with a magnetic field of 5T:- Calculate the magnitude of the counter torque, that must be applied to prevent the coil from turning.