15 terms

# AC Circuits

Chapter 21 AC circuits for Physics 212
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Instantaneous (AC)
Voltage
Peak Velocity times Sine 2 pie Frequency Time
(V = V₀ × Sin 2πƒt)
Current RMS
Voltage divided by Resistance
(I = V÷R)
Voltage RMS
.707 Peak Voltage
(V = V₀÷√2)
(V ≈ .707×V₀)
Average Power in an AC circuit
Voltage squarred divided by Resitance
(P = V²÷R)
(P = I²×R)
Capacitive Reactance
1 divided by 2 pie frequency capacitance
(Xc = 1 ÷ 2πƒC)
Inductive Reactance
2 pie frequency L
(XL = 2πƒL)
Ohm's law Resistor
Velocity divided by Current
(R = V÷I)
Ohm's law Capacitor
Voltage divided by Current
(Xc = V÷I)
Ohm's law Inductor
Voltage divided by Current
(XL = V÷I)
Ohm's law Generalized to AC circuits
Ohm's law Generalized to AC circuits
Impedance for a series RLC circuit
Square Root of paranthesis Restitance squared + paranthesis Inductive Reactance - Capacitive Reactance end paranthesis squared
(Z=√(R²+ (XL-Xc)²)
Phase angle between voltage and current in a series RLC circuit
Tangent Theta = Inductive Reactance - Capacitive Reactance divided by Resistance
Power factor for an RLC circuit
Cosine Theta = Resitance divided by Impedance
Average power in terms of power factor
Current RMS Voltage RMS Cosine Theta
Resonance frequency of a series RLC circuit
1 over 2 pie Square Root L Current