1
KCET 2017
MCQ (Single Correct Answer)
+1
-0
A jet plane of wing span 20 m is travelling towards west at a speed of $400 \mathrm{~ms}^{-1}$. If the earth's total magnetic field is $4 \times 10^{-4} \mathrm{~T}$ and the dip angle is $30^{\circ}$, at that place, then the voltage differences developed across the ends of the wing is
A
0.8 V
B
6.4 V
C
3.2 V
D
1.6 V
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