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Question

An aircraft with a wing-span of 40 m flies with a speed of 1080 km h1 in the eastward direction at a constant altitude in the northern hemisphere, where the vertical component of earth's magnetic field is 1.75 ´ 105T. Then the emf that develops between the tips of the wings is


A
0.5 V
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B
0.35 V
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C
0.21 V
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D
2.1 V
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Solution

The correct option is B 0.21 V

L=40 m, v=1080km h1=300m sec1 and B=1.75× 105T
e=Blv=1.75× 105× 40× 300=0.21V


Physics

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