At What Frequency Is the Reactance of A $20.0 - \mathrm { mH }$

question 158

Multiple Choice

At what frequency is the reactance of a $20.0 - \mathrm { mH }$ inductor equal to $120 \Omega$ ?

• A) \(318 \mathrm {~Hz}\)
• B) \(1110 \mathrm {~Hz}\)
• C) \(637 \mathrm {~Hz}\)
• D) \(955 \mathrm {~Hz}\)
• E) \(796 \mathrm {~Hz}\)

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