# AC Theory

A Guide to Credit for Prior Learning

## Typical Learning Experiences of Students Earning Lower-Level Credit:

- Attend electronics program or gain electronics knowledge through work experience or hobbies.

## Typical Learning Experiences of Students Earning Upper-Level Credit:

- Students generally do not earn upper-level credit in the area of AC Theory.

## Discussion Topics:

If students are familiar with some (but not necessarily all) of the following topics, they may be eligible for lower-level credit in the area of AC Theory. If knowledge of some of the topics is substantial, the students may consider requesting additional credit in more narrowly defined areas.

### AC Current

- Discuss the dynamics of AC current production.

### The AC Cycle

- Explain how waves represent AC current.

### Phase

- What are three ways in which AC currents, EMFs or waves can differ?
- Define phase.
- Define amplitude.
- Define frequency.

### Advantages of AC

- Explain the advantages of AC current.
- How would you calculate power loss in a line using the formula for power loss?

### Inductance

- Define inductance.

### Impedance

- Define impedance.

### Circuit Components

- What is a resistor?
- What are switches?
- What are capacitors?
- What are transformers?

### Mathematics

- What are formulas such as Ohm’s Law and Kirchoff’s Law used to calculate?
- Explain how to calculate impedance.
- Explain how to calculate phase angle.
- When does one use vector addition?
- What does the J operator in front of a number indicate?

### Electrical Supply

- Describe the electricity supply system for residential and industrial use as produced by large generators at power stations.