Course: HET 119 HVACR Electricity II

Unit 2 Outline

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Unit 2 Outline

1.     Atomic Theory
- What are atoms consist of?
- What make a good conductor?
- What makes a poor conductor?
- Attraction of electrons

2.     Types of current flow
- Static Electricity
- Electricity Produce from Chemical Reaction
- Electricity Produce from Magnetism

3.     Conductors and Insulators
- What makes a good conductor
- What makes a good insulator

4.     Parts of an Electrical Circuit
- Conductor
- Insulator
- Load

5.     Voltage, Resistance, and Current
- Electric Potential Difference
- Resistance
- Current Flow

6.     Electrical Energy
- Watt and Kilo-watts
- Power Factor

7.     Ohm’s Law
- E=IXR
- I=E/R
- R=E/I

8.     Summary
- States of matter is: Solid, Liquid, and Gases.
- Atoms are the smallest particles and are made of electrons, protons, and neutrons.
- Alternating current is produce from induction of magnetism into a coil of wire.
- Direct current is produce from chemical reaction into metal plates.
- Energy can be transferred into different forms of energy, i.e., electrical energy into mechanical energy.
- Ohm’s law is used to determine voltage, resistance, and current in electrical circuits.
- Voltage is the force to pushes electrons through a circuit.
- Amperage is the flow or movement of electrons in a circuit.
- Resistance is the impedance of electrons flow in a circuit.

Review the vocabulary terms listed below and look up their definitions / descriptions before taking the Vocabulary Quiz.

Vocabulary

Alternating Current

Direct Current

Ampere

Atom

Conductor

Electric Power

Electron

Matter

Ohm’s Law

Voltage

Watt