ElectroMagnetic InductionHard
Question
A conducting ring of radius 1 meter is placed in an uniform magnetic field B of 0.01 tesla oscillating with frequency 100 Hz with its plane at right angle to B. what will be the induced electric field ?
Options
A.π volt/m
B.2 volt/m
C.10 volt/m
D.62 volt/m
Solution
A changing magnetic field gives rise to electric field as shown in the figure.
The relation between electric field and changing magnetic field is
∮Ed l =
2πrE =
⇒ E = r.
( Alternative way φ = B.A cosωt)Here dB = 0.01 - (-0.01) = 0.02
dt =
E =
= 2 volt/mCreate a free account to view solution
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