Consider an RC (resistor-capacitor) AC circuit with a supply voltage of Vac = 200 V, with an angular frequency, w, a resistor, R = 100 , and a capacitor, C. Assume the angular frequency of the power supply is set at w = 1/RC. (a) What is the impedance, Z of the circuit? (b) What is the current in the circuit? (c) What is the (peak) voltage drop across the resistor and the capacitor, respectively? (d) Draw the phasor diagram for this situation. (e) What is the phase angle between the current and the power supply voltage? (f) What would the ratio of L/C have to be if an inductor were added to the circuit in series that made the circuit purely resistive (Z = R)?

Consider an RC (resistor-capacitor) AC circuit with a supply voltage of Vac = 200 V, with an angular frequency, w, a resistor, R = 100 , and a capacitor, C. Assume the angular frequency of the power supply is set at w = 1/RC. (a) What is the impedance, Z of the circuit? (b) What is the current in the circuit? (c) What is the (peak) voltage drop across the resistor and the capacitor, respectively? (d) Draw the phasor diagram for this situation. (e) What is the phase angle between the current and the power supply voltage? (f) What would the ratio of L/C have to be if an inductor were added to the circuit in series that made the circuit purely resistive (Z = R)?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter15: Alternating-current Circuits

Section: Chapter Questions

Problem 50AP: A 700-pF capacitor is connected across an ac source with a voltage amplitude of 160 V and a...

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