Electromagnetism Unit:

Internal resistance & Kirchoff:

•  DC circuit builder (Phet): use "lab" with ammeter & voltmeter and turn on "battery resistance" 

Capacitors (DC):

• Capacitor Lab (PHET) changeable voltage, area, distance AND discharge through bulb

• Capacitor Lab with dielectric effect (PHET) - uses java

• Dielectric and Series vs Parallel Capacitor Lab (PHET): with V, Q and E stored as you slide dielectric into capacitor as well as series vs parallel capacitors

• Charge/Discharge graphs: Falstad's circuit simulator: drop-down menu: Circuits: Basics: Capacitor

• Charge & discharge capacitor (HKNG): download & run java file: 3 graphs at the same time!

• Factors that affect capacitance (Florida State Uni)

• Charge & discharge capacitor (Florida State Uni)

• time constant graph of charging capacitor (Florida State Uni)

Inductors (DC):

• Induced voltage from L2phy that can be explained by change in flux! (HKNG)

• Faraday's Law (HTML5 PHET) bar-magnet & inductor

• Induction (Geogebra) bar-magnet & inductor

• Lens' Law (FSU) showing direction of induced current

• DC incuctor current-time graphs: Falstad's circuit simulator: drop-down menu: Circuits: Basics: Inductor

• Faraday's Law (java PHET): better but need to download and run java

• AC Generator (Fendt): for change in flux creating back EMF

• Another generator (Duffy): graph of flux vs time and current vs time

• Induction Coil (MagLab)

• Simple DC transformer (FSU)

• Simple AC transformer (FSU)

• DC inductor graph with time constant (java HKNG) download and run java

• Inductor used to make Ne bulb flash (MagLab)

• Inductor vs Capacitor in DC (Fendt)

AC circuits!

• LRC AC insanity with resonance and phasors (HKNG)

• AC summary with animations (UNSW): Everything you'll ever need to know about AC circuits

• AC circuits with either R, C or L (Fendt)

• AC circuit with either R, C or L with phasors! (Mag Lab) warning: current is ALWAYS a sine wave in NZ...

• AC circuit simulator (Phet) java download & run

• Circuit simulator (Falstad) select "circuit" dropdown menu, then "A/C circuits"...

• LRC circuit (Boston uni) with R, L and C voltage waves, phasors and current vs frequency graph

• LRC AC circuit with phasors & graphs (JavaLab)

• Impedance "phasors" (Boston uni) from reactances and resistance

Helpful files:

• Common explanation questions for L3 P2.6

• L3 E&M 2-page review sheets: when to use each equation, vocab & most common diagrams

• Answers to L3 E&M review sheets above