Title: Describe current, including its unit of measurement and symbol.
Course: Electronics Systems I (17106-18) > Section: Introducing Properties of Electricity

Description should include

- differentiating between direct current (DC), alternating current, and pulsating direct current (PDC), including symbols and units of measurement
- explaining that current is measured in amperes (amps)
- identifying the symbol for current (I)
- defining electrical current as the motion of free electrons
- explaining the usual sine waveform and periodic changes in direction of alternating current.

Process/Skill Questions:

- What is the unit of measurement for current?
- What letter symbol is used to represent current?
- In which direction does current flow? Why?