A small, conducting circular loop is positioned inside a long, current-carrying solenoid. The plane of the loop contains the axis of the solenoid. When the current in the solenoid is altered, the induced current in the loop is

Step-by-step solution

The magnetic field inside a long current-carrying solenoid is uniform and directed along its axis. Since the plane of the small conducting circular loop contains the axis of the solenoid, the magnetic field lines are parallel to the plane of the loop. The angle between the magnetic field vector B and the area vector A of the loop is 90^ . The magnetic flux through the loop is = B A = BA (90^ ) = 0 . When the current in the solenoid is altered, the magnitude of the magnetic field changes, but its direction remains p