31. Alternating Current

Impedance in AC Circuits

Finding Total Impedance

AC Theory: How to Calculate Impedance and Construct an Impedance Triangle

AC current impedance - Alternating Voltage for inductors, capacitors

You have a 200-Ω resistor, a 0.400-H inductor, and a 6.00-μF capacitor. They are connected to form an L-R-C series circuit. (a) What is the impedance of the circuit?

You have a 200-Ω resistor, a 0.400-H inductor, and a 6.00-μF capacitor. Suppose you take the resistor and inductor and make a series circuit with a voltage source that has voltage amplitude 30.0 V and an angular frequency of 250 rad/s. (a) What is the impedance of the circuit?

Introduction to Phasors, Impedance, and AC Circuits

Electronic Basics #37:  What is Impedance? (AC Resistance?)

An AC source operates at a maximum voltage of 120 V and an angular frequency of 377 s-1 . If this source is connected in parallel to a 15 Ω resistor and in parallel to a 0.20 mF capacitor, answer the following questions:&nbsp;a) What is the maximum current produced by the source?&nbsp;b) What is the maximum current through the resistor?&nbsp;c) What is the maximum current through the capacitor?

Anderson Video - LRC Circuits and Impedance

Impedance of a Parallel LR AC Circuit

Z = sqrt(R2 - 1/ω2C2)

Z = sqrt(1/R2 + ω2C2)

1/Z = sqrt(1/R2 + ω2C2)

1/Z = sqrt(1/R2 + 1/ω2C2)

What’s the impedance of a parallel RC AC circuit?

Anderson Video - Ohm's Law and Impedance

Impedance

Resistors in AC Circuits (Impedance)

You have a 200-Ω resistor, a 0.400-H inductor, and a 6.00-μF capacitor. They are connected to form an L-R-C series circuit. (b) What is the current amplitude?

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