Unit 4 - Electric Effects

Here is a list of important points that you should know:

- The three effects of electric current
- Demonstrate the heating effect
- State Joule's Law and give its formula
- Solve problems using Joule's Law
- Describe an experiment to verify Joule's Law
- Understand and explain the advantage of using EHT in the transmission of electrical energy
- Define the kilowatt-hour. Describe its uses and solve problems using it
- Describe the chemical and magnetic effects of electric current

If you feel you need to revise any of these areas, use the “Learn it” material in Step 2.

Use these notes to help you easily understand the topic.

-Interactivity:Effects of Electric Current
- Heating effect and Joule's Law
- Advantage of EHT
- The kilowatt-hour
- Chemical effect
- Magnetic effect

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