- Can a wire carry a current and still be neutral-that is, have a total charge of zero? Explain.
To explain:
Can a wire carry a current and still be neutral that is, have a total charge of zero.
Explanation of Solution
Introduction:
Current in any conductor is the flow of electron within it.Kirchhoff first law which is based on current at any nodemust be zero. If electron flow within anybody, then total charge at any particular point must be zero
For electric current to flow in conductor there must be a flow of electrons within the conductor. As electrons are negatively charged particle and amount of current flow in a conductor is determined by the flow of electrons. But when electron carried from battery to conductor it must be entered through one terminal and then passes to the other terminal of the battery. So, the charge does notremain in conductor it passes to the battery that is the reason for conductors have a neutral charge.
Conclusion:
Thus, the wire hasa neutral charge if current flow through it due to the conservation of charge at all point of wire.
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Chapter 20 Solutions
College Physics
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