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Question
What capacitance should be used to produce a $2.00 \textrm{ M}\Omega$ reactance at 60.0 Hz?
Question by OpenStax is licensed under CC BY 4.0.
Final Answer

$1.33 \textrm{ nF}$

Solution Video

OpenStax College Physics Solution, Chapter 23, Problem 81 (Problems & Exercises) (0:39)

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Video Transcript
This is College Physics Answers with Shaun Dychko. We want to calculate what capacitance would be needed to create a capacitive reactance of two mega ohms given a frequency of 60 hertz. So the reactance for capacitor is 1 over 2 Pi times frequency times capacitance. So we need to solve this for C. So multiply both sides by C over capacitance and we get capacitance is 1 over 2 Pi F reactance. So that's one over two Pi times 60 hertz times 2 times tenth to the six ohms which gives a capacitance of 1.33 nano farads.