1.

A copper coil is moving out of a magnetic field with a constant velocity. If the ohmic resistance of the coil is increased then will it be easy or difficult to remove the coil from the same magnetic field?

Answer»

Solution :When copper coil is moving out of a magnetic field with CONSTANT velocity then induced EMF (`EPSILON`) is developed. The work done against induced `"emf" = epsilon L`. If resistance of the coil is increased, then current will decrease and hence, work required against induced emf will also decrease and it will be easier to remove the coil from the magnetic field.


Discussion

No Comment Found

Related InterviewSolutions