Title: Explain common electrical terms.
Course: Applied Agricultural Concepts (18002-II-36) > Section: Performing Electrical Operations

Explanation should include defining the terms watts, amps, volts, and ohms in accordance with the National Electrical Code (NEC).

Explanation should also include describing

- atomic structure, as it relates to electricity
- the law of charges
- the differences among conductors, insulators, and semiconductors
- current, including its unit of measure and symbol
- voltage, including its unit of measure and symbol
- resistance, including its unit of measure and symbol
- the interrelationship of current, voltage, and resistance
- potential and electromotive forces
- Ohm's law.

Process/Skill Questions:

- What are the differences between watts, amps, volts, and ohms?
- How are watts, amps, volts, and ohms calculated?
- Who is credited with discovering the law of charges?
- According to the law of charges, how should objects with similar charges behave with each other?
- What letter symbol is used to represent current? Voltage? Resistance?
- How does resistance affect the movement of free electrons?
- What are the mathematical relationships of Ohm’s law?