94.A jet plane is flying parallel to the earth surface at a speed 1800km/hr .The distance between the end points of the wing of the jet plane is 25 cm then what is the value of induced electromotive force at the end of the wings of the jet plane .The value of earth magnetic field is 1/2000 T and angle of dip is 30 degree.

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Q. A jet plane is travelling towards west at a speed of 1600 km/h. What is the voltage difference developed between the ends of the wing having a span of 25 m, if the Earths magnetic field at the location has a magnitude of 5

\times 10^{- 4}

T and the dip angle is

30^{o}

Q. A jet plane of wing span

20 m

is travelling towards west at a speed of

400 {m s}^{- 1}

. If the earth's total magnetic field is

4 \times 10^{- 4} T

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30^{o}

, at that place, the voltage difference developed across the ends of the wing is

The angle of elevation of a jet plane from a point A on the ground is $60^{\circ}$ . After a flight of 30 seconds, the angle of elevation changes to $30^{\circ}$ . If the jet plane is flying at a constant height of $3600 \sqrt{3} m e t r e s$ , find the speed of the jet plane.