JEE Main 8 April 2017 Paper Solved Paper

Section: Physics

Question : 20 of 90

Marks: +1, -0

A small circular loop of wire of radius a is located at the centre of a much larger circular wire loop of radius b. The two loops are in the same plane. The outer loop of radius b carries an alternating current I=Iocos(ωt). The emf induced in the smaller inner loop is nearly :

[Main 8 April 2017]

πµ0I0
2
.
a2
b
ωsin(ωt)
πµ0Io
2
.
a2
b
ωcos(ωt)
πµ0I0
a2
b
ωsin(ωt)
πµ0I0b2
a2
ωcos(ωt)

Validate

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