A helicopter is moving in upward direction with speed of 10 m/s. If the length of the helicopter is 10 m and the horizontal component of magnetic field of earth is `1.5 xx 10^(-3) "Wb"/ m^2` then the induced emf produced across the foremost (nose) and end part (tail) of the helicopter will be ____

Options

A. 0.15 V
B. 125 V
C. 130 V
D. 5 V

Answer

A

Explanation

Induced emf `epsilon=Hlv sin theta`
`=1.5xx10^(-3)xx10xx10xx"sin"pi/2`
`therefore epsilon` =0.15V