closely wound solenoid of 800 turns and area of A cross-section 2.5x10 m2 carries a current of 3.0A. Explain the sense in which the solenoid acts like a bar magnet. What is its associated magnetic moment?

A closely woundsolenoid of 800 turns and area of cross section 2.5xx10^-4m^2 carries a current of 3.0 A. Explain the sense in which the solenoid acts like a bar magnet. What is its associated magnetic moment?

A closely wound solenoid of 2000 turns and area of cross-section 1.6x10-^4m^2 , carrying a current of 4.0A, is suspended through its centre allowing it to turn in a horizontal plane. Br What is the magnetic moment associated with the solenoid?

A closely wound solenoid of 2000 turns and area of cross-section 1.6x10-^4 m^2 , carrying a current of 4.0A, is suspended through its centre allowing it to turn in a horizontal plane. Br What is the force and torque on the solenoid if a uniform horizontal magnetic field of 7.5x10^2 is set up at an angle of 30° with the axis of the solenoid?

A solenoid of length 0.5m has a radius of 1cm and is made up of 500 turns. It carries a current of 5A. What is the magnitude of the magnetic field inside the solenoid?

A 100 turn closely wound circular cell of radius 10 cm carries a current of 3.2A (a) what is the field at the centre of the coil? (b) What is the magnetic moment of this coil? The coil is placed in a vertical plane and is free to rotate about a horizontal axis which coincides with its diameter. A uniform magnetic field 2 T in the horizontal direction exists such that initially the axis of the coil is in the direction of the field. The coil rotates through an angle of 90^(o) under the influence of the magnetic field (c) What are the magnitudes of the torques on the coil in the initial and final position? (d) What is the angular speed acquired by the coil when it has rotated by 90^(o) ? The moment of inertia of the coil is 0.1 kg m^(2) .