Question

If a magnet is plugged into a coil, then the magnitude of induced emf does not depend upon:

• A. the number of turns in the coil
• B. the medium of the core of the coil
• C. the insertion speed of the magnet
• D. the strength of the magnet
• E. the resistance of the coil

Answer 1

The correct option is E the resistance of the coil

The magnitude of induced emf is given by $e=\frac{Nd\varphi }{dt}=NB\frac{ds}{dt}$
Which depends upon number of turns(N), magnetic field intensity(B) which depends upon medium, rate of change of area$\left(ds/dt\right)$ which depends upon insertion speed of magnet. It is independent of resistance of coil.