in a uniform magnetic field a loop is rotated by an angle of 450.what is the emf induce in the loop if area of loop is A and magnetic field intencity is B

Dear student,

The flux through a loop of area A is given by

Faraday's law can be written:

The negative sign in Faraday's law comes from the fact that the emf induced in the coil acts to oppose any change in the magnetic flux. This is summarized in Lenz's law.

Lenz's law: The induced emf generates a current that sets up a magnetic field which acts to oppose the change in magnetic flux.

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