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State the factors on which induced e.m.f...

State the factors on which induced e.m.f. in a coil rotating in a uniform magnetic field depends.

Text Solution

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The e.m.f. induced in a coil rotated in a magnetic field is given by `E= NAB omega sin omega t`. Thus, induced e.m.f. depends on number of trurns of the coil, area of coil, strength of magnetic field and angular speed of rotation.
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Knowledge Check

  • To induce an e.m.f. in a coil, the magnetic flux linking :

    A
    must decrease
    B
    can either increase or decrease
    C
    must remain constant
    D
    must increase

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