question_answer

In a coil of resistance, the induced current developed by changing magnetic flux through it, is shown in figure as a function of time. The magnitude of change in flux through the coil in Weber is

A)  8                                

B) 2

C)  6                                

D) 4

Correct Answer: B

Solution :

The charge through the coil = area of current-time  graph  \[\because \] Change in flux