The graph shows the variation in magnetic flux `phi(t)` with time through a coil. Which of the statements given below in not correct?

Options

A. The magnitude of the induced e.m.f. is maximum between B and C
B. There is change in the direction as well as magnitude of induced e.m.f. between A and C
C. The induced e.m.f. is not zero at B
D. There is a change in the direction as well as magnitude of the induced e.m.f. between B and D

Answer

C

Explanation

At point B, the flux `phi` is maximum `:. d phi =0`
`:. E = |(d phi)/(dt)| = 0`
`:.` The induced e.m.f. at B is zero.
(c) is the wrong statement.