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Standard XII

Physics

Motional EMF

An aircraft w...

Question

An aircraft with a wingspan of 40 m flies with a speed of 1080 km / hr in the eastward direction at a constant altitude in the northern hemisphere, where the vertical component of the earth’s magnetic field $1.75 \times 10^{- 5} T$ . Then the emf developed between the tips of the wings is

0.21 V

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0.5 V

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2.1 V

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0.34 V

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Solution

The correct option is A
0.21 V

$e = B l v = 1.75 \times 10^{- 5} \times 40 \times 300 = 0.21 V$

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An aircraft with a wingspan of 40 m flies with a speed of 1080 km / hr in the eastward direction at a constant altitude in the northern hemisphere, where the vertical component of the earth’s magnetic field 1.75×10−5T. Then the emf developed between the tips of the wings is

The correct option is A 0.21 V e=Blv=1.75×10−5×40×300=0.21V

An aircraft with a wingspan of 40 m flies with a speed of 1080 km / hr in the eastward direction at a constant altitude in the northern hemisphere, where the vertical component of the earth’s magnetic field $1.75 \times 10^{- 5} T$ . Then the emf developed between the tips of the wings is

The correct option is A
0.21 V

$e = B l v = 1.75 \times 10^{- 5} \times 40 \times 300 = 0.21 V$