Find the linear speed the bicycle required to power its head light by a generator, whose rubber shaft presses against the wheel of cycle of radius `0.33 m`, turns at an angular speed of `44` times as great as the angular speed of the tire itself. The coil consists of `75` turns, has an area of `2.6 xx 10^(-3) m^(2)`, and rotates in a `0.10 T` magnetic field. When the peak emf being generated is `6.0 V`.

Options

A. `2.5 m//s`
B. `5 m//s`
C. `2.3 m//s`
D. `4.6 m//s`

Answer

C

Explanation

`v = r((1)/(44)) omega_("coil")` where `omega_("coil") = (e.m.f)/(NAB)`