Question

In the figure, a region with constant (externally produced) magnetic field is shown. A wire loop moves into the magnetic field.

Which of the following is correct? While the loop is moving into the region with the constant external magnetic field, the magnetic field inside the loop due to the induced current in the loop points ...

... right
... out of the page
No magnetic field is induced by the movement of the loop.
... up
... left
... down
... into the page

If someone could explain how to use Lenz's law it would be great! Thanks

Answer 1

Well,its easy.....

As Lenz's law states , direction of induced field in the loop will be opposite to the direction
of the field in the area(having magnetic field) given above, however the field inside the loop existing after a long time(when loop is completely in magnetic field region),the induction
it the loop is zero and the field of that area fully penetrate in the loop

fore more info....the ever living link-----

http://wps.aw.com/aw_young_physics_11/13/3510/898593.cw/index.html