Electric Charge Chapter 18

Topic 1 Coulomb's Law

State Coulomb's Law

Topic 2 Charge

(a)    How is the Coulomb of charge defined?

(b)   What is the force between two 1 C charges one meter apart?

(c)    What is the charge on an electron?

Example

How great is the charge on a 2.5 g plastic cup suspended from an insulating thread 50 cm long if a like charge of opposite sign held 10 cm away from the cup pulls it aside a distance of 5 cm.

Textbook Problems