PHYS 2212 Module 1.1

Electric Charge

Recommended Reading

1.1 Electric Charge

Learning Objectives

By the end of this section, you will be able to:

  • Describe the concept of electric charge
  • Explain qualitatively the force electric charge creates

Electric Charge

Practice!

Practice 1.1.1
Common static electricity involves charges ranging from nanocoulombs (nC) to microcoulombs (µC).
Check your answer here: about 13 billion
Practice 1.1.2
Common static electricity involves charges ranging from nanocoulombs (nC) to microcoulombs (µC).
Check your answer here: about 3 trillion
Practice 1.1.3
To start a car engine, the car battery moves 3.75 × 1021 electrons through the starter motor.
Check your answer here: 600

Discuss!

Reflect on this question and take notes on how you would answer it. Then we will share these thoughts together in a class discussion.

How would you determine whether the charge on a particular rod is positive or negative?