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 ×10−4 T and the dip angle is 30o.
3.8 V
3.2 V
4.1 V
2.2 V
A
3.2 V
B
4.1 V
C
2.2 V
D
3.8 V
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Solution
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The correct option is B 3.2 V Vertical component of B,
Bsinδ=5×10−4×sin(30)=2.5×10−4T
EMF, E=Blv
E=2.5×10−4×25×1800×518=3.125V
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