JEE Main 2017 — Electromagnetic Induction Question with Solution
From: JEE Main 2017 (Offline)
Question
In a coil of resistance 100 , a current is induced by changing
the magnetic flux through it as shown in the figure. The
magnitude of change in flux through the coil is:
This question includes a diagram. The text above accompanies the figure.
Choose an option
Show full solutionCorrect option: D
Correct answer
D250 Wb
Step-by-step explanation
According to Faraday's law of electromagnetic
induction,
Also, = iR
= iR
Magnitude of change in flux (d) = R × area under current vs time graph
d = = 250 Wb
Also, = iR
= iR
Magnitude of change in flux (d) = R × area under current vs time graph
d = = 250 Wb
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