Question about Fields: B Field Propagation Speed?

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The discussion centers on the propagation of the magnetic field (B field) when current flows through a wire. It clarifies that fields do not travel in the traditional sense; rather, the B field changes in intensity due to the propagation of electromagnetic waves. When current is initiated, there is a time lag before the B field is felt at a distance, which occurs at the speed of light. The emphasis is on the change in the B field rather than its propagation from the wire itself. Understanding this distinction is crucial for grasping electromagnetic field behavior.
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I was told that fields don't travel. So if i have a wire with initially no current running and then i flip a switch to start some current, and I am at a distance x from the wire. Is the time lag from the wire at the speed of light before i feel the B field from the wire? Does the B field propagate out from the wire at the speed of light?
Any input will be much appreciated.
 
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The field travels by the wave-type.

We do not say the B field propagate from the wire.
It is said that the B field is changing from 0 to some value in intensity, which is the result of the propagation of electromagnetic wave from the wire after you switched.
 

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