Lesson: Impedance of Alternating Current Circuits Physics
In this lesson, we will learn how to calculate the impedance of simple resistive-capacitive-inductive circuits, using capacitive and inductive reactances.
An alternating voltage source with a frequency of 75 Hz is connected to a 35 mH inductor. What is the reactance of the circuit? Give your answer to two decimal places.
An alternating voltage source with a frequency of 50 Hz is connected to a 125 µF capacitor. What is the reactance of the capacitor? Give your answer to the nearest ohm.
What is the frequency of the alternating current in a circuit that contains a 0.25 H inductor that produces a reactance of 42 Ω? Give your answer to two decimal places.