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Question

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 ×104 T and the dip angle is 30o.
  1. 3.8 V
  2. 3.2 V
  3. 4.1 V
  4. 2.2 V

A
3.2 V
B
4.1 V
C
2.2 V
D
3.8 V
Solution
Verified by Toppr

The correct option is B 3.2 V
Vertical component of B,
Bsinδ=5×104×sin(30)=2.5×104T
EMF, E=Blv
E=2.5×104×25×1800×518=3.125V

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