Answer:
Explanation:
It is given that,
Radius of the circular loop, r = 0.7 m
Magnetic field, B = 0.44 T
In 0.14 s the wire is reshaped from a circle into a square, but remains in the same plane.
Area of the circular wire,
For the area of square,
The circumference of wire,
Side of square,
Area of square,
An emf is induced in the loop due to change in its area. The induced emf is given by :
So, the magnitude of the average induced emf is 1.10 volts. Hence, this is the required solution.