A rectangular, a square, a circular and an elliptical loop, all in the (x-y) plane, are moving out……………

Class 12th Physics, Question -A rectangular, a square, a circular and an elliptical loop, all in the (x-y) plane, are moving out of a uniform magnetic field with a constant velocity 𝑣⃗ = v𝚤̂.The magnetic field is directed along the negative z-axis direction. The induced emf, during the passage of these loops, out of the field region, will not remain constant for

These are the options for the question :A rectangular, a square, a circular and an elliptical loop, all in the (x-y) plane, are moving out of a uniform magnetic field with a
constant velocity 𝑣⃗ = v𝚤̂.The magnetic field is directed along the negative z-axis direction. The induced emf, during the passage of these loops, out of the field region, will not remain constant for

(i) any of the four loops
(ii) the circular and elliptical loops
(iii) the rectangular, circular and elliptical loops
(iv) only the elliptical loops

The correct answer is -(ii) the circular and elliptical loops