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Question 4 1 pts A jet develops a 0.79 V potential difference between the tips of its wings when flying above a region of the earth where the earths magnetic field points essentially vertically upward and has a strength of about 35 HT (106 T). If the jets wingspan is 35 m, what is its speed? Give your answer in km/s.

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Answer #1

Induced Emf

V = (Bv).v.l

   where Bv = Earth Magnetic Field

   v=speed of jet

   l = wings span of jet

0.79 = 10-6 x v x 35

v = 2.257142857 x 104 m/sec

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