Question

Calculate the average induced voltage between the tips of the wings of a Boeing 747 flying at 940 km/hr above East Lansing. The downward component of the earth's magnetic field at this place is 0.7·10-4 T. (DATA: Assume that the wingspan is 60 meters.) (in V) A: 7.56×10-1 B: 1.10 C: 1.59 D: 2.31 E: 3.34 F: 4.85 G: 7.03 H: 1.02×101

Answer 1

Answer:

option (b)

Explanation:

B = 0.7 x 10^-4 T

v = 940 km/h = 940 x 5 / 18 = 261.11 m /s

l = 60 m

Th emotional emf is given by

e = B v l

e = 0.7 x 10^-4 x 261.11 x 60 = 1.096 V

e = 1.1 V