Consider a coil C₁ connected to galvanometer as shown. Another current carrying coil C₂ is placed next to the first coil. 

In context to this, answer the following question.

What happens when coil C2 is moved towards the coil C1?

Some current flows

C2 has some net magnetic field associated with it due the current flowing through it. When the C2 is brought towards C1, the magnetic flux linked with the coil changes and cause EMF to develop which causes the current to flow.