YEAR 13  Course Content and Applets menu
 

MECHANICS Circular Motion Satellites in Orbit Rotational Motion Angular Momentum Torque Simple Harmonic Motion SHM and Reference Circle SHM and Energy Resonance	ELECTRICITY Year 12 Electricity Electric Fields Capacitors Other Components Oscilloscope Kirchhoff's Laws AC Circuits
ELECTROMAGNETISM  Year 12 Electromagnetism Magnetism Generators and Motors	ATOMIC & NUCLEAR Bohr's Atomic Model Spectral Lines Photoelectric Effect Nuclear Reactions
WAVES & LIGHT Diffraction (photos) Double Slit Interference Standing Waves (photos) Resonance Sound Waves and Harmonics Beats Electromagnetic Waves Doppler Effect (photos)

Workbook answers
Electricity                         Mechanics            Waves                    Atoms/Nuclear
elec 1.pdf                         mech 1.pdf            waves 1.pdf          image-9301248-0003.pdf
elec 2.pdf                         mech2.pdf             waves 2.pdf          Q an N 1.pdf
elec 3.pdf                         mech3.pdf             waves 3.pdf          Q an N 2.pdf
elec 4.pdf                         mech4.pdf             waves 4.pdf
elec 5.pdf                         mech5.pdf
elec 6.pdf                         mech6.pdf
elec 7.pdf


LCR circuits

Phasor Diagrams

It is sometimes helpful to treat the phase as if it defined a vector in a plane. The usual reference for zero phase is taken to be the positive x-axis and is associated with the resistor since the voltage and current associated with the resistor are in phase. The length of the phasor is proportional to the magnitude of the quantity represented, and its angle represents its phase relative to that of the current through the resistor. The phasor diagram for the RLC series circuit shows the main features.

Note that the phase angle, the difference in phase between the voltage and the current in an AC circuit, is the phase angle associated with the impedance Z of the circuit.
(from http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html)

Helpful way of remembering what leads what:

ELI the ICE man

(from http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html)