Q. The current $i$ in an induction coil varies with time $t$ according to the graph shown in figure. Which of the following graphs shows the induced emf ($e$) in the coil with time
A)
B)
C)
D)
Explanation
(c) Emf induces during ‘$a$’ = 0
emf induces during ‘$b$’ is constant throughout emf induces during ‘$c$’ is constant throughout magnitude of emf induced during ‘$b$’ is equal to the magnitude of emf induced during ‘$c$’. But the direction opposite
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.