Question

An aeroplane in which the distance between the tips of wings is 50 m is flying horizontally with a speed of 360 km/hr over a place where the vertical components of earth magnetic field is$2.0 \times 10^{- 4}weber/m^{2}$. The potential difference between the tips of wings would be

• A. 0.1 V
• B. 1.0 V
• C. 0.2 V
• D. 0.01 V

Answer 1

Answer: (B)

1.0 V

Answer 2

$e = B_{v}.v.l = 2 \times 10^{- 4} \times \left( \frac{360 \times 1000}{3600} \right) \times 50 \Rightarrow e = 1\mspace{6mu} V$