Physics-
General
Easy
Question
Two parallel rails of a railways track insulated from each other and with the ground are connected to a millivoltmeter. The distance between the rails is one metre. A train is travelling with a velocity of 72 km-
along the track. The reading of the millivotmeter (in mV) is : (Vertical component of the earth’s magnetic induction is
- 1.44
- 0.72
- 0.4
- 0.2
The correct answer is: 0.4
Induced emf
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