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A jet plane is travelling west at the sp...

A jet plane is travelling west at the speed of `1600kmh^(-1)`. The voltage difference developed between the ends of the wing having a span of 20m, if the earth's magnetic field at the location has a magnitude of `5xx10^(-4)` T and the dip angle is `30^(@)` is

A

4.1 V

B

2.2 V

C

3.1 V

D

3.8 V

Text Solution

Verified by Experts

The correct Answer is:
D
Here, `v=1600 km h^(-)=1600xx(5)/(18)=444 m s^(-)`
`l=20 m,B=5xx10^(-4)T and delta=30^(@)`
As `epsi=Blv` (where V is the vertical component of earth's field)
`(B sin dela)lv" " (:. V=B sin delta)`
`5xx10^(-4) sin 30^(@)xx20xx444=22.V`
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