Question

1. Faraday’s law of electromagnetic induction is a law that states that when the magnetic flux linking a circuit changes, an electromotive force is induced in the circuit proportional to the rate of change of the flux linkage.

Please click the link: https://phet.colorado.edu/sims/html/faradays-law/latest/faradays-law_en.html

And observe the fluctuation of induced current in the circuit by moving the magnet.

Answer 1

yes when we move north pole of a magent towards the coil the pointer in the voltage deflecting towards left negative side,when we move north pole of a magnet away from a coil the pointer in the voltage deflecting towards right positive side.as the north pole of a magnet moves towards the coil the magnetic field lines passing through the coil increases means flux increases so induced current inducing in the opposite side in order to decrease the increase of flux through a coil. when north pole of a magnet moves away from a coil the magnetic field lines passing through a coil decreases means magnetic flux is decreasing in this case induced EMF or current inducing in the positive side that is opposite to original magnetic flux to increase its value.

in this from the diflections of induced current we can conclude that inducing current or EMF is opposite to rate of change of magnetic flux through a coil.this is called lenz law