Question

Suppose a coil is placed in a changing magnetic field and the circuit is not closed will the current induced in the coil?

Answer 1

A magnetic field is a vector field so it explains the magnetic influence on moving electric charges, electric currents and magnetic materials.
An electrical conductor such as a wire in the shape of a coil is called an electromagnetic coil. A current will be induced in the wire if a coil of wire is placed in a changing magnetic field.
The charges around the wire will produce the electric field due to the flowing of current in the wire.

Complete step by step answer:
The changing magnetic field is only due to the material's motion induces a current in the wire coil and it is also proportional to the change in the magnetic field.
We aren't able to find or measure current for instance because the galvanometer is not allowed to connect according to the given question.
Changing magnetic field produces electric current in the process of electromagnetic induction.
When an external changing magnetic field is applied to the electrons, they move and have their own magnetic field.
The current will produce due to the movement of electrons. As per the circuit is not closed so that the current will not be induced in the coil.
Current only flows through wire.

Hence, the current will not be measured by galvanometer.

Note: Magnetism is the combined electromagnetic force. It is the physical phenomena of the force caused by magnets.
Objects attract or repel other objects that produce magnetic fields.
Electric voltage is induced in the coil if a coil is placed in a magnetic field and the magnetic flux changes.
Magnetic flux explains the density of magnetic field lines perpendicularly to the surface area S.
Magnetic flux, $\phi = BS$
Where, $\phi$ = magnetic flux
B = Magnetic field
S = Surface area