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DC & AC circuits (Network Theorem (Delta to Wye - AYPASS, Wye to Delta…
DC & AC circuits
Network Theorem
Delta to Wye - AYPASS
Wye to Delta - YASPAO
Thevenins
Nortons
KCL/KVL
Mesh/Maxwell
Source Transformation
Parameters
Current
Columbs/second
Physiological effect
0.3mA - Threshold of sensation
1mA - Threshold of pain
9-25 mA Can't let go
100mA - 3A Ventricular fibrillation and Possible Death
+3A Severe Burns and Shock
Voltage
w/Q or E/Q or Joules/Columb
Energy Per unit time
From Alessandro Volta
Resistance
R = pl/a :
R1/R2 = T1 + Tref/T2 + Tref
Temperature Coefficient
Positive - Increase in Resistance with Temperature. Conductor
Negative - Decrease in Resistance with Temperature. Insulators
Pure AC Circuits
Purely Resistive - current matches voltage
Purely Inductive - Current lags Voltage
Purely Capacitive - Current leads voltage
Triangles
Power
Impedance
Admittance
Resonance - CSSIPM - Si SaS I PM
Series Minimum Impedance
Parallel Maximum Impedance
Atomic Theory
Parts
Intranuclear Region
Proton
Neutron
Extranuclear Region
electrons < 4 - Conductor
electrons = 4 - Semiconductor
electrons > 4 Insulator