SHM or not?
In the picture above, a conducting semicircular loop is placed in crossed magnetic field in some restricted region. such that it is completely inside. The plane of the ring is perpendicular to the magnetic field.
If the ring is rotated by some angle and left will it do angular SHM, choose the correct option.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
We know that, whenever there is change in magnetic flux through an area, emf is induced in conducting coil to oppose the change .
So, this emf will finally cause here torque to bring coil back to position, but since it'd have got some velocity, it will oscillate.
But there will be energy loss in coil due to current induced and the resistance, voilating the condition for SHM.