Question
Question: The two rails of a railway track, insulated from each other and the ground, are connected to millivo...
The two rails of a railway track, insulated from each other and the ground, are connected to millivoltmeter. What is the reading of the millivoltmeter when a train passes at a speed of 180 km/hr along the track, given that the vertical component of earth's magnetic field is 0.2 × 10–4wb/m2 and rails are separated by 1 metre-
A
10–2 volt
B
10 Mv
C
1 volt
D
1 mV
Answer
1 mV
Explanation
Solution
e = (Bv) Vl