Question

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(a) 0.10 V(b) 0.15 V(c) 0.20 V(d) 0.30 V

Answer 1

Correct Answer is option a: 0.10 V

Explanation :

wing span of an aeroplane =l= metre.

Magnetic field =B=5×10⁻⁵ tesla

velocity= v= 360 km/hx5/18 = 100 m/s

Formula :

E= BlV

= 5×10⁻⁵ x20 x100

=0.1 V

Answer 2

Option A is correct.

0.10.