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 × 10–4 wb/m2 and rails are separated by 1 metre
A. 10–2 volt
B. 10 mV
C. 1 volt
D. 1 mV
Answer:D
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 × 10–4 wb/m2 and rails are separated by 1 metre
A. 10–2 volt B. 10 mV C. 1 volt D. 1 mV