A wire is carryin current.is it charged??

Question

A wire is carryin current.is it charged??

Answer 1

Not necessarily - there may still be equal positive and negative charges in the wire, making it neutral as a whole. However, as all real wire (unless superconducting) has some resistance, net charge must vary slightly along it in order to make the current flow.

Answer 2

The conduction electrons move but have the same density as when there is no current, so the wire is not charged.

Answer 3

Not necessarily.... a current can be induced in an object of neutral charge if acted upon by a magnetic field. Granted, there will be charged ions moving WITHIN the object, but the overall balance of position and negative charges (protons, electrons) may cancel one another out.