- Intermediate electrical terms and definitions - Calculate electrical forces and fields involving one or two charges and one or two dimensions. Solve problems involving Ohm's Law, ac and dc current, resistance, conductance, capacitance, inductance, and potential in series and parallel circuits. Have the ability to recognize the sources and effects of magnetic fields. Find electrical impedance and power in simple circuits with linear elements.
- Commutators: Basics on AC and DC Generation [Video] Watch how generators make AC power and how to make DC power using a commutator.
- AC Resistor Circuits Pure resistive AC circuit: resistor voltage and current are in phase.
- AC Inductor Circuits Pure inductive circuit: Inductor current lags inductor voltage by 90°.
- AC Capacitor Circuits Pure capacitive circuit: capacitor voltage lags capacitor current by 90°.
- Reactance and Impedance -- R, L, and C Translating all component values (resistance, inductance, capacitance) into common terms of impedance is the first step in analyzing an AC circuit.
- Electrical relationships - Perform calculations related to electrical power, transformation, measurement, and monitoring to includes watts, vars, phase angles, power factor, and phase shifting.
- Solving Complex Numbers in AC Circuits Learn how to successfully analyze AC circuits using mathematical objects and techniques that represent multi-dimensional quantities.
- Voltage/Current Phase Angle "ELI the ICE man" A mnemonic for the phase relationships of current and voltage.
- Balanced Three-Phase Circuits [PDF] In a balanced three-phase system, each of the three instantaneous voltages have equal amplitudes but are separated from the other voltages by a phase angle of 120°.
- Transformer Calculations Learn to utilize the Ohms Law Ladder to do transformer calculations.
- Introduction to Symmetrical Components [PDF] Any set of unbalanced three-phase quantities could be expressed as the sum of three symmetrical sets of balanced phasors.
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