please type out all of your solutions I have bad eyesight and handwriting can be hard for me to read please show all calculations if needed 21) When a current flows through a metal wire, the moving charges areA) both protons and electrons.B) negative metal ions.C) positive metal ions.D) only protons.E) only electrons.

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Answered: 21) When a current flows through a…

21) When a current flows through a metal wire, the moving charges are A) both protons and electrons. B) negative metal ions. C) positive metal ions. D) only protons. E) only electrons.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 28PE: What current flows through a 2.54-cm-diameter rod of pure silicon that is 20.0 cm long, when 1,00 ...

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Concept explainers

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.

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please type out all of your solutions I have bad eyesight and handwriting can be hard for me to read please show all calculations if needed

21) When a current flows through a metal wire, the moving charges are
A) both protons and electrons.
B) negative metal ions.
C) positive metal ions.
D) only protons.
E) only electrons.

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