Electromagnetic induction is a process in which voltage is produced across a conductor which is located in a magnetic field which is changing constantly.It also occurs when a conductor is moved through a fixed magnetic field.
When you move the magnet back and forth while doing the experiment, you will notice that the galvanometer needle moves. It indicates that a current is induced in the coil. The needle immediately returns to zero when the magnet is not moving. This is when the induction occurs.
Answer is "A". D^_^b
Electrical conductivity describes