A coil is placed in a vertical plane and it is free to rotate about a horizontal axis which coincides with its diameter . A uniform magnetic field of 2T in the horizontal direction exists such that intially the axis of the coi is in the direction of the field . The coil rotates through an angle of 90 degree under the influence of the magnetic field. ( a) What are the magnitudes of the torques on the coil in the initial and final positions? ( b) What is the angular speed acquired by the coil when it has rotated by 90 degree ? The moment of the coil is 0.1 kgm ?
A coil is placed in a vertical plane and it is free to rotate about a horizontal axis which coincides with its diameter . A uniform magnetic field of 2T in the horizontal direction exists such that intially the axis of the coi is in the direction of the field . The coil rotates through an angle of 90 degree under the influence of the magnetic field. ( a) What are the magnitudes of the torques on the coil in the initial and final positions? ( b) What is the angular speed acquired by the coil when it has rotated by 90 degree ? The moment of the coil is 0.1 kgm ?
Anshuman Mishra , 8 Years ago
Grade 12
