A coil of resistance 20hms and inductance 200uH is in parallel with a variable capacitor. The combination is in series with a resistor of 8k ohms. The voltage of the supply is 200V at a frequency of 10kHz. Calculate the value of C to give resonance, the Q of the coil and the current in each branch of the circuit at resonance.

A coil of resistance 20hms and inductance 200uH is in parallel with a variable capacitor. The combination is in series with a resistor of 8k ohms. The voltage of the supply is 200V at a frequency of 10kHz. Calculate the value of C to give resonance, the Q of the coil and the current in each branch of the circuit at resonance.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter21: Resistive-capacitive Series Circuits

Section: Chapter Questions

Problem 6RQ: A 15-F AC capacitor is connected in series with a 50 resistor. The capacitor has a voltage rating...

See similar textbooks

Similar questions

An RC series circuit is connected to a 120-V, 60-Hz power source. The resistor is 25 and has a voltage drop of 65 volts. What is the capacitance of the capacitor?
A 15-F AC capacitor is connected in series with a 50 resistor. The capacitor has a voltage rating of 600 WVDC. The capacitor and resistor are connected to a 480-V, 60-Hz circuit. Is the voltage rating of the capacitor sufficient for this connection?
2.A series R -L-C circuit is to be made resonance when connected to a 200 – volt 500 cycle source. If the inductance is 0.047 henry, determine the capacitance of the capacitor and the minimum ohmic value of the resistor if the voltage drop across the capacitor is limited to 580 volts?
What is the current through the capacitor in this AC circuit?
In a series LR circuit, the reactance of the inductance is 520 ohm. What will be the value of the inductor if the frequency of the AC is 60 HZ?
A coil has 50 ohms resistance and a 70 ohms reactance. A capacitor is connected in parallel to produce resonance. The source voltage is 120 volts, what is the power drawn by the circuit? 52 watts 162 watts 132 watts 97 watts
Q6. Calculate the total current in the circuit below if the circuit is powered by the sine wave voltage source of 120 Vm and frequency 50 Hz. Draw the current phasor diagram and determine if this circuit fulfils the criteria of resonance. Vm Sine 50 Hz L1 0.7 H L2 0.5 H reee reeer 2 Figure Q6 C1 5.1 mF C2 0.12 mF R1 110 Ω R2 330 Ω
An RC series circuit is connected is connected to 120V, 60Hz power source. The resistor is 25 ohms and has a voltage drop of 65 volts. What is the capacitance of the capacitor in uf?
Calculate circuit values below. How does the total circuit impedence change as the frequency increases from 500 HZ to 50 Khz? How does the total current change as those frequencies increase?
What is the voltage across the capacitor in this AC circuit?
* Super Position 12A 6V Si talke S.
Question 4 A boost converter has an input of 5V and an output of 20W at 15V. The minimum inductor current must be no less than 50% of the average. The output voltage ripple must be less than 1%. The switching frequency is 30kHz. Determine the duty ratio, minimum inductor value, and minimum capacitor value. Verify your answers using Matlab, show the inductor current is continues and its minimum is no less than 50% of its average. Furthermore, the output voltage ripple is less than 1%.