Answer Posted / srinivasa kc
The current always flow from higher potential to lower potential i.e, from phase to neutral(In a single phase circuit).as we know the T/F sec is star connected i.e, neutral wire is grounded in the T/F placing point, so all the current flows from phase through load to neutral(The return current always flows through the neutral for closing the circuit path) hence we cant feel the shock even if we touch the neutral wire because neutral is at ground potential(i.e, current always flows through the low resistance path)
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