Question

asssertion : when a coil is moved out a magnetic field acting normally to its plane, induced emf is produced. Reason: the induced emf is produced in a coil when it is placed inside the magnetic field​

Answer 1

Answer:

The assertion is correct and reason is wrong.

Explanation:

Assertion: When a coil is moved out a magnetic field acting normally to its plane, induced EMF is produced.

Since there is change in the magnetic field when the coil is moving out, there is a change in magnetic flux induced which in turn has induced an EMF in the coil.

dΦ=B⋅dA (change in flux directly proportional to change in area in contact with magnetic field)

EMF = dΦ / dt (induced emf is directly proportional to the change in flux density)

Whereas the assertion,

Given Reason: The induced EMF is produced in a coil when it is placed inside the magnetic field​.

This is statement is false, as the EMF can't be induced in a stationary coil.

Correct reason: The induced emf is produced in a coil due to the change in magnetic flux density when the coil is moved out of the magnetic field.

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