Chapter 21 Concepts - Coulomb's Law

Question 1

The universal rule about Electric Charge

Answer 1

Particles with the same sign of electrical charge repel each other and particles with opposite signs attract each other.

Question 2

superconductor

Answer 2

perfect conductor; absolutely no hindrance for charges

Question 3

Removal of negative charges process

Answer 3

Only conduction electrons with negative charges can move; positive ions are fixed in place.
An object becomes positively charged only through the removal of negative charges
*Newly negatively charged objects gain mass while positively charged ones lose mass

Question 4

First Shell Theory

Answer 4

If negative charges were removed from a spherical metal shell, the theory states that the shell will either attract or repel an external charge as if all the shell’s excess charge were concentrated at its center

Question 5

What is the elementary charge?

Answer 5

e=+/-1.602*10^-19 C

Question 6

charge of an electron

Answer 6

-e

Question 7

charge of a proton

Answer 7

+e

Question 8

charge of neutron

Answer 8

0