If we move a bar magnet towards the loop of wire then we observed that slightly deflection in galvanometer.
which indicates the presents of small current original of this current can be explain on the basis of faraday law,according to this the motion of bar magnet towards loop increasing the amount of flux and this change in flux will be responsible for indused current.
induction will be exist till there will be relative motion between bar magnet and coil.
The direction of indused current can be given by lenz's law.According this law current will be indused in anticlockwise direction(if we observed the loop from the side of bar magnet).it is because of North pole of indused dipole should face the north pole of bar magnet so that is can repel the incoming magnet.
Eind=-dΦ/dt
-ve indicates that the indused emf will oppose the changing flux.
