Why are the oscillations of a copper disc in a magnetic field highly damped?

What is a magnetic field?

What is magnetic field?

A current loop in a magnetic field

Why are LC oscillations usually damped?

What is Damped oscillations ?

The earth's magnetic field

A bar magnet of mass 120 g, in the form of a rectangular parallelopiped has dimensions l = 40 mm, b = 10 mm and h = 80 mm. With the dimensions h vertical, the magnet performs angular oscillations, in the plane of a magnetic field with period pis . If its magnetic moment is 3.4Am^2 , determine the influencing magnetic field.

The strength of the earth's magnetic field is

In a cyclotron, the applied magnetic field