Magnetic field strength effected by insulation of wire

AI Thread Summary
The discussion centers on the impact of insulation on the magnetic field strength around two conductors carrying current, one bare and one insulated. Participants agree that insulation does not significantly affect the magnetic field, as it is not made of ferrous materials that would alter magnetic permeability. While some suggest that insulation materials might have a negligible effect, the consensus is that the magnetic field intensity remains largely unchanged between the two types of conductors. The use of shielded cables is mentioned as a practical application where insulation's impact is minimal. Overall, insulation does not meaningfully influence magnetic field strength in this context.
samieee
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Hello,
Suppose there are two conductors carrying currents. One of them is bare conductor and the other has insulation. Now magnetic field will be created around them due to the current flow through them. What will be the condition of magnetic field strength around them? They have same field intensity or intensity around bare conductor will be greater than insulated conductor? Please explain

Thanks
 
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samieee said:
Hello,
Suppose there are two conductors carrying currents. One of them is bare conductor and the other has insulation. Now magnetic field will be created around them due to the current flow through them. What will be the condition of magnetic field strength around them? They have same field intensity or intensity around bare conductor will be greater than insulated conductor? Please explain

Thanks

The insulation has no effect. Why would it?
 
berkeman said:
The insulation has no effect. Why would it?

Thanks for your reply. I guess insulation materials having lesser magnetic permeability than air will bring some effect (though negligible) isn't it?
 
samieee said:
Thanks for your reply. I guess insulation materials having lesser magnetic permeability than air will bring some effect (though negligible) isn't it?

A material would need to be ferrous to affect the magnetic field. Neither air nor wire insulation is ferrous.
 
The effect of the insulation is negligible. That is why you have shielded cable.
 
MrAnchovy said:
The effect of the insulation is negligible. That is why you have shielded cable.

hmmm
 

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