For an LRC series circuit containing a resistance of 11.0 kΩ, a capacitance of 2.0 μF, and an inductance of 24.0 H, what frequency is needed to minimize the impedance?
A) 0.023 kHz
B) 0.14 kHz
C) 10 kHz
D) 1.7 kHz

Question

Quizplus · Accepted Answer

The impedance of an LRC series circuit is minimized when the inductive reactance equals the capacitive reactance. The inductive reactance is given by XL = 2πfL, and the capacitive reactance is given by XC = 1/(2πfC). Setting these two equations equal to each other and solving for f gives:f = 1/(2π√LC) = 1/(2π√(24.0 H)(2.0 μF)) = 0.023 kHzTherefore, the correct answer is A.

For an LRC Series Circuit Containing a Resistance of 11