A helicopter rise verticaly with a spee...

A helicopter rise verticaly with a speed of ` 10ms^(-1)`. If helicopter has a length of 10 m and the horizontal component of the earth's magentic field is ` 1.5 xx 10^(-3) Wbm^(2)`, the emf induced between the tip of the nose and the tail of the helicopter, is

`0.15 V`

`125 V`

`130 V`

`5 V`

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A helicopter rises vertically upwards with a speed of 100 m//s . If the helicopter has a length of 10m and horizontal component of earth's magnetic field is 5 xx 10^(-3)Wb//m^(2) , then the induced emf between the tip of the nose and the tail of the helicopter is

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