Chapter 21 Electric Charge

Chapter 21 Electric Charge - Chapter 21 Electric Charge...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 21 Electric Charge (1/25/07) Electric Charge Every object contains a vast amount of  electric charge Electric charge is an intrinsic characteristic of the fundamental particles making up an object;  comes automatically with particles wherever they exist An object is  electrically neutral  when it has equal amounts of  positive  and  negative  charge;  contains no  net  charge Charged objects have a net charge; they have a charge imbalance Charges with the same electrical sign repel each other, and charges with opposite electrical signs  attract each other The term  electrostatic  emphasizes that, relative to each other, the charges are either stationary or  moving only very slowly Conductors and Insulators Conductors - materials through which charge can move rather freely  Ex: metals, human body, tap water   conduction electrons - outermost and most loosely held electrons that become free to wander within  the solid, and therefore leave behind positively-charged atoms  Only conduction electrons can move; positive ions are fixed in place; thus, an object only becomes  positively charged through the removal of negative charges Insulators (nonconductors) - materials through which charge cannot move freely
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/27/2008 for the course PHYSICS 101 taught by Professor Bennet during the Spring '08 term at Johns Hopkins.

Page1 / 2

Chapter 21 Electric Charge - Chapter 21 Electric Charge...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online