Question

The magnetic flux through a coil varies with time t as shown in diagram. Which graph best represents the variation of the emf E induced in the coil?

• A.
• B.
• C.
• D.

Answer 1

Answer: (C)

Answer 2

f = f (sin q) ® function of sin q

\ E = – $\frac{d\varphi}{dt}$ = f (– cos q) ® function of –ve cosq . Hence correct graph is (3)