Q. The graph shows the variation in magnetic flux $\phi(t)$ with time through a coil. Which of the statements given below is not correct
A) There is a change in the direction as well as magnitude of the induced emf between $B$ and $D$
B) The magnitude of the induced emf is maximum between $B$ and $C$
C) There is a change in the direction as well as magnitude of induced emf between $A$ to $C$
D) The induced emf is not zero at $B$
Explanation
(d) At $B$, flux is maximum, so from $|e| = \frac{d\phi}{dt}$ at $B|e| = 0$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.