Question

An airplane travels horizontally at a speed 720 km/hour through a region of magnetic field B=1Gauss above the magnetic north pole. What is the electric potential difference between the opposite ends its wings separated from each other by 50 m? ОАО B. None of the above OC.1V OD.6 mv OE. 1 eV OF. 11 V

Answer 1

Given

Magnetic field (B)= 1 gauss = 1*10^-4 tesla

Length (l)= 50 m

Velocity (v)=720 kmph =720*5/18 m/s

As we know that

Emf induced = vBl

= 720*(5/18)*10^-4 * 50

=1 v

So electric potential difference generated is 1 V

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