Question

The graph shows the variation in magnetic flux $\varphi (t)$ 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 $A$ and $C$
• D. The induced emf is zero at $B$

Answer 1

Answer: (D)

At $B$, flux is maximum, so from $|\epsilon |=\frac{d\varphi }{dt}$ at $B|\epsilon |=0$