Electro Magnetic Induction And Alternating Currents Question 441
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 [CPMT 2003]
Options:
A) 0.10 V
B) 0.15 V
C) 0.20 V
D) 0.30 V
Show Answer
Answer:
Correct Answer: A
Solution:
$ e=Bvl=5\times {{10}^{-5}}\times \frac{360\times 1000}{3600}\times 20=0.1V $
