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  • An aircraft with a wingspan of 40 m flies with a speed of<img alt="1080 \mathrm{~km} \mathrm{~h}^{-1}" src="https://entrancecorner.oncodecogs.com/gif.latex?1080%20%5Cmathrm%7B%7Ekm%7D%20%5Cmathrm%7

An aircraft with a wingspan of 40 m flies with a speed of1080 \mathrm{~km} \mathrm{~h}^{-1} in the eastward direction at a constant altitude in the northern hemisphere, where the vertical component of earth's magnetic field is1.75 \times 10^{-5} T. Then the e.m.f. that develops between the tips of the wings is

Option: 1

0.5 V


Option: 2

0.34 V


Option: 3

0.21 V


Option: 4

2.1 V


Answers (1)

best_answer

\mathrm{\begin{aligned} & \mathrm{L}=40 \mathrm{m}\ \mathrm{v}=1080 \mathrm{~km} \mathrm{~h}^{-1}=300 \mathrm{~m} \mathrm{sec}^{-1} \\ & \mathrm{~B}=1.75 \times 10^{-5} \mathrm{~T} \\ & \therefore \mathrm{e}=\mathrm{Blv}=1.75 \times 10^{-5} \times 40 \times 300=0.21 \mathrm{~V} \end{aligned}}

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shivangi.shekhar

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