The adjoining figure shows two different arrangements in which tw… - Vidyadip

MCQ

The adjoining figure shows two different arrangements in which two square wire frames are placed in a uniform constantly decreasing magnetic field $B.$ The value of magnetic flux in each case is given by

A
Case $I: \Phi = \pi (L^2 + l^2)B;$ Case $II: \Phi = \pi (L^2 - l^2)B$
B
Case $I: \Phi = \pi (L^2 + l^2)B;$ Case $II: \Phi = \pi (L^2 + l^2)B$
✓
Case $I: \Phi = (L^2 + l^2)B;$ Case $II: \Phi = (L^2 - l^2)B$
D
Case $I: \Phi = (L+ l)^2B;$ Case $II: \Phi = \pi (L+ l)^2B$

✓

Answer

Correct option: C.

Case $I: \Phi = (L^2 + l^2)B;$ Case $II: \Phi = (L^2 - l^2)B$

c

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