|GCSE Basics Atom BCD Binary >Conductors< Current Energy Equations Insulators Maths Power Resistance Safety SI Units Superconductors Symbols Transfer Characteristics Voltage|
Electrons are Free to Flow in Conductors. If there's a complete circuit and a potential difference, a current will flow.
These are materials where some of the electrons surrounding the atoms are free to move. Good conductors (all metals) have a very low resistance and many free electrons can move very easily. We usually assume the resistance is zero but in fact it is just very close to zero.
Poor conductors (carbon is a good example and some metal alloys and oxides) have a few free electrons and they move much less freely. These materials are used in resistors.
Subject Name Level Topic Name Question Heading First Name Last Name Class ID User ID
Q: qNum of last_q Q ID: Question ID Score: num correct/num attempts Date Done
Add Delete Clone Edit Hardness
Contact, Copyright, Cookies and Legalities: C Neil Bauers - reviseOmatic V4 - © 2016/17
Hosted at linode.com - London
Please report website problems to Neil