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Physics
The graph shows the variation in magnetic flux φ(t) with time through a coil. Which of the statements given below is not correct?
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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?
Electromagnetic Induction
A
There is a change in the direction as well as magnitude of the induced emf between $B$ and $D$
20%
B
The magnitude of the induced emf is maximum between $B$ and $C$
20%
C
There is a change in the direction as well as magnitude of induced emf between $A$ and $C$
20%
D
The induced emf is zero at $B$
40%
Solution:
At $B$, flux is maximum, so from $|\varepsilon|=\frac{d \phi}{d t}$ at $B|\varepsilon|=0$
