Explain about the electromagnetic principle behind an electric train signal? It is very urgent. Share with your friends Share 1 Vikas answered this Electromagnetic principle of train signalstrain signal are based on electromagnetic devices.these circuit depends upon electrical energy flowing through the coil winding to create an electromagnetic force sufficient to lift and hold the piece of metal ,known as lay armature ,againstthe pole faces of the electromagnet.when energy is not flowing through flowing through the relay coils ,no electromagnetic force is present and the armature is released from the magnetized pole pieces . 2 View Full Answer
