In an AC generator, a coil with N turns,...

In an AC generator, a coil with N turns, all of the same area A and total resistance R, rotates with frequency `(omega)` in a magnetic field B. The maximum value of emf generated in the coils is

`NABR omega`

`NAB`

`NABR`

`NAB omega`

Text Solution

Verified by Experts

The correct Answer is:

The emf generated would be maximum when flux (cutting) would be maximum i.e., angle between a area vector of coil magnetic field is `0^(@)`. The emf generated is given by (as a function of time]
`e = NBA omega cos omega t rArr e_("max") = NAB omega`

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