Question

1) In an LRC circuit, why does the sum of the voltages around the circuit not equal the applied voltage as Kirchhoff’s rule requires?

2) Using L = 20 mH, C = 50 ?F and R = 15 ohms, calculate the resonant frequency of the series LRC circuit. Show your work in the space below.

3) Using the values from pre-lab question 2 and an applied voltage of 3.0 volts across the circuit, plot (on a separate sheet) the voltage across the resister as a function of frequency from 40 Hz to 240 Hz.

4) A resistor, capacitor, and inductor are all connected in series with R = 2.2 k?, C = 680 pF, and L = 350 mH respectively. If a source voltage of 150 V (rms) is delivered to the circuit with a frequency of 9.5 kHz, what is the current (rms) in the circuit?

5) In a series RLC circuit, the rms voltage across each component is VR = 24 V, VC = 82 V, and VL = 78 V. What is the source voltage (rms) for this circuit?

*Please provide equations and steps used

Answer 1