Electromagnetic Induction and Alternating Current 2 Question 13
14. The two rails of a railway track, insulated from each other and the ground, are connected to a millivoltmeter. What is the reading of the millivoltmeter when a train travels at a speed of along the track given that the vertical components of earth’s magnetic field is and the rails are separated by ? Track is South to North.
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Answer:
Correct Answer: 14.
Solution:
- Potential difference between the two rails :