A capacitor C is connected in series with a 400 resistor across a supply of frequency 60 Hz. A current of 3 A flows and the circuit impedance is 500. Calculate: (a) the value of capacitance, C, (b) the supply voltage, (c) the phase angle between the supply voltage and current, (d) the p.d. across the resistor, and (e) the p.d. across the capacitor. Draw the Phasor diagram.

A capacitor C is connected in series with a 400 resistor across a supply of frequency 60 Hz. A current of 3 A flows and the circuit impedance is 500. Calculate: (a) the value of capacitance, C, (b) the supply voltage, (c) the phase angle between the supply voltage and current, (d) the p.d. across the resistor, and (e) the p.d. across the capacitor. Draw the Phasor diagram.

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 industrial load consisting of a bank of induction motors consumes 50 kW at a power factor of 0.8 lagging from a 220-V,60-Hz, single-phase source. By placing a bank of capacitors in parallel with the load, the resultant power factor is to be raised to 0.95 lagging. Find the net capacitance of the capacitor bank in F that is required.
Assume that the voltage drop across the resistor, ER, is 78 V, that the voltage drop across the inductor, EL, is 104 V, and the circuit has a total impedance, Z, of 20 . The frequency of the AC voltage is 60 Hz. ETITZ20VAPFER78VIRRPEL104VILXLVARsLL
Three capacitors having capacitance values of 20F,40F, and 50F are connected in parallel to a 60 - Hz power line. An ammeter indicates a circuit current of 8.6 amperes. How much current is flowing through the 40F 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?
What frequency must be applied to a 33-mH inductor to produce an inductive reactance of 99.526 ?
List the five capacitor replacement rules.
the parallel connection of a resistor and a capacitor takes 0.6 A rms from a 120 V rms voltage source. Given the 0.7 leading power factor, find the resistance and capacitance at 400Hz.
A sinusoidal 50 Hz voltage of 200 V (rms) supplies the following three circuits which are inparallel: (a) a coil of inductance 0.03 H and resistance of 3 ohms, (b) a capacitor of 400 microFaradin series with a resistance of 100 ohms and (c) a coil of inductance 0.02 H and resistance 7 ohms inseries with a 300 microFarad capacitor. Find the total current supplied?
A 90 kHz sinusoidal voltage has zero phase angle and a maximum amplitude of 30 mV . When this voltage is applied across the terminals of a capacitor, the resulting steady-state current has a maximum amplitude of 629.60 μA . Pt A. What is the frequency of the current in radians per second? Pt B. What is the phase angle of the current? Pt C. What is the capacitive reactance of the capacitor?
An amateur radio operator wishes to build a receiver thatcan tune a range from 14.0 MHz to 15.0 MHz. A variablecapacitor has a minimum capacitance of 86 pF. (a) Whatis the required value of the inductance? (b) What is themaximum capacitance used on the variable capacitor?
A 50 kHz sinusoidal voltage has zero phase angle and a maximumamplitude of 10 mV. When this voltage is applied across the terminalsof a capacitor, the resulting steady-state current has a maximumamplitude of 628.32 μA.1. What is the frequency of the current in radians per second?2. What is the phase angle of the current?3. What is the capacitive reactance of the capacitor?4. What is the capacitance of the capacitor in microfarads?5. What is the impedance of the capacitor?
An ac circuit includes a 155 Ω resistor in series with a 8.00 μF capacitor. The current in the circuit has amplitude 4.00×10−3 A. At the frequency for which the capacitive reactance equals the resistance, find when the voltage across the resistor is maximum, what is the voltage across the capacitor? When the voltage across the capacitor is maximum, what is the voltage across the resistor?