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Magnetism
harsh
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Joined: 18 Aug 2012
Post: 12
18 Aug 2012 19:37:36 IST
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time varying B
Engineering Entrance , Medical Entrance , NEET , JEE Main , AIIMS , JEE Main & Advanced , Physics , Magnetism

 the magnetic field perpendicular to a 3 cm^2narea 40 loop coil is changing in the follwoing way

B=250-0.6t mT  what is induced emf in coil?


Comments (1)
Juhi Sharma
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Joined: 22 May 2009
Posts: 2467
18 Aug 2012 19:45:41 IST
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 phy= B.A

=(750-1.8t)*10^-7Wb

E=-dphy/dt

=40(1.80*10^-7)

7.2uV
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