Week 1 Term 3 20204 DC Electric Circuits

 Homework:

Electric Fields

• Act 17A, p.192-194, Electric Fields
• Ex 6A, p.188-196, Static Electric Fields

DC Electric Circuits

• Act 18A, p.201 Intro DC Electricity
• Act 18B, p.207 Simpler Equivalent Circuits
• Act 18C, p.209 Potential Dividers
• Act 18D, p.211-213 Using Ohm's Law
• Ex 6B, p.200-201 Voltage and Current
• Ex 6C, p.205-214 D.C. Circuits

Current

Current is the rate of flow of Charge

I = Δq/Δt

Current

Voltage

Voltage (Potential Difference) is the change in energy (work done) to each coulomb of charge between two points on a circuit, or two points across an electric field

Circuit Symbols

Ohm's Law

Ohm's Law PhET application

D.C. Circuit Construction Kit PhET Application

D.C. Circuit Lab PhET Application

Ohm's Law

Series & Parallel Circuits

Series & Parallel Circuits

Electric Power

P = IV

P = I2R  ← using Ohm’s Law V=IR substitution

P = V2/R←using Ohm’s Law I=V/R substitution