If a magnet is put inside one coil of wire, a voltage is produced. What will happen if the magnet is put inside two coils of wire? There will not be a change. The voltage will decrease by a factor of two. The voltage will increase by a factor of two. The two coils of wire will cancel out the magnetic field. The voltage will be zero.

Question

anonymous · Answer

The voltage will be zero when there is no change in magnetic flux. a magnet placed in a coil do not produce any voltage in the coil, until there is no relative motion is between coil or magnet. Emf induced due to change of magnetic  flux, if there is no cahnge of flux, no emf will be induced.  the answer of your question is, there is no emf in the coil.