The area enclosed by a circular coil of 2000 turns is 10 cm2 . Its plane is kept perpendicular to a magnetic
field of 0.3 Wb m–2 and is rotated through 180°. Calculate the change in magnetic flux.

Dear Student,n=2000A=10 cm2=0.001 m2B=0.3 Tthe flux remain same after 180 degree rotation ϕ=nBA=2000*0.3*0.001=0.6 weber.Regards

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