Q.

The wing span of an aeroplane is 20 metre. It is flying in a field, where the vertical component of magnetic field of earth is 5 × 10–5 tesla, with velocity 360 km/h. The potential difference produced between the blades will be

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a

0.10 V

b

0.15 V

c

0.20 V

d

0.30 V

answer is A.

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Detailed Solution

e=Bvl=5×10−5×360×10003600×20=0.1V
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The wing span of an aeroplane is 20 metre. It is flying in a field, where the vertical component of magnetic field of earth is 5 × 10–5 tesla, with velocity 360 km/h. The potential difference produced between the blades will be