A silver rod of length one metre fixed at one end is rotating with angular
velocity 400 rad `s^(-1)` about the fixed end in a uniform magnetic field of intensity 0:3 T. Find
the induced emf between the centre and far end of the rod.

Explanation

Length of the rod = 1 m
Angular velocity = `omega=400" rad" s^(-1)`
B = 0.3 T
Induced emf = e = ?
`e=(1)/(2)B omega I^(2)`
`=(1)/(2)xx 0.3 xx 400 xx (1)^(2)`
e = 60 volt