Example 1 8 A uniform constant magnetic field B directed tan

Last updated: 6/13/2023

Example 1 8 A uniform constant magnetic field B directed tan angle of 45 to the x axis in the x y plane PQRS is a rigid quare wire frame carrying a steady current Io with its center at the origin O At time t 0 the frame is at rest in the position hown in Fig 1 100 with its sides parallel to the x and y axes Each side of the frame is of mass M and length L a What is the torque 7 about O acting on the frame due to the magnetic field b Find the angle by which the frame rotates under the action of this torque in a short interval of time At and the axis about which this rotation occurs At is so short that any variation on the torque during this interval may be neglected Given moment S P O Fig 1 100 R Q x