If an electric current is flowing through an electric wire, can we consider that wire charged?
The answer is required with a proof. Can we consider the wire to be charged positively or negatively?
Answer
Jerk_dadt is correct. Electric current is the flow of free electrons in the conductor. At any instant, the number of electrons leaving the wire is always equal to the number of electrons flowing from the battery into it. Hence, the net charge on the wire is zero.
If you say the current carrying conductor is charged, it will violate the Kirchoff junction rule, which is based on the fact that in an electric circuit, a point can neither act as a source of charge, nor can the charge accumulate at that point.
No comments:
Post a Comment