The magnitude of induced emf is given by, $e=\frac{Nd\varphi }{dt}=NB\frac{ds}{dt}$

Which depends upon the number of turns (N), magnetic field intensity (B) which depends upon the medium, rate of change of area $\left(\frac{ds}{dt}\right)$ which depends upon insertion speed of magnet. It is independent of resistance of the coil.