Electronics and Communication Engineering - Electromagnetic Field Theory - Discussion

Discussion Forum : Electromagnetic Field Theory - Section 1 (Q.No. 40)
40.
In a 100 turn coil, if the flux through each turn is (t3 - 2t)mWb, the magnitude of the induced emf in the coil at a time of 4 sec is
46 mV
56 mV
4.6 V
5.6 V
Answer: Option
Explanation:

E = 100 (3t2 - 2) 100(46) 4600 mV

4.6 V.

Discussion:
2 comments Page 1 of 1.

Kumar said:   9 years ago
Please explain it.

Ravi said:   7 years ago
@All.

Use differentiation, and solve using the formula of Faraday's law.

Post your comments here:

Your comments will be displayed after verification.