A 120 V, 60 Hz power source is connected in series across an 800 Ω resistance and an unknown capacitance in series. The voltage drop across the resistor is 102 V. Find (a) the voltage drop across the capacitor; and (b) the reactance of the capacitor.
A 120 V, 60 Hz power source is connected in series across an 800 Ω resistance...
An inductor and a resistor are connected in series. When connected to a 60-Hz, 90-V (rms) source, the voltage drop across the resistor is found to be 46 V (rms) and the power delivered to the circuit is 12 W. (a) Find the value of the resistance. Ω (b) Find the value of the inductance. H
A series R-L circuit is connected to a 120 V, 60 Hz source. The circuit consists of a 2 Ω resistor and an inductor. The current is lagging the voltage by 52.8°. a. Calculate the reactance, XL. b. Calculate the value of the inductor L, in henries. c. Calculate the impedance, ZT. d. Calculate the current.
An ac series circuit consists of a voltage source of frequency f = 60 Hz and voltage amplitude V, a resistor of resistance R = 593 Ω, and a capacitor of capacitance C = 2.8×10−6F. What must the source voltage amplitude V be for the average electrical power consumed in the resistor to be 382 watts? There is no inductance in the circuit.
An uncharged capacitor and a resistor are connected in series to a source of emf. If emf=9.00 V, capacitance=21.5 ?F, and resistance=127Ω, find (a) the time constant of the circuit. After 1.30 ms, find (b) the charge on the capacitor, (c) the voltage drop across the capacitor, (d) the voltage drop across the resistor, and (e) the current.
Circuit Analysis in Electrical Engineering 4. A resistor and a capacitor are connected in series across a 270-V ac supply. When the frequency is 40 Hz, the current flowing in the circuit is 6.25 A. When the frequency is 50 Hz, the current flowing in the circuit is 7.5 A Calculate the resistance and capacitance of the resistor and capacitor respectively. (99.97 μF; 16.798 Ω) If the resistor and capacitor are now connected in parallel across the 60-Hz supply, calculate...
A 200-Ω resistor is connected across an ac voltage source V = (150 V) sin [2π(60 Hz)t]. What is the average power delivered to this circuit (in Watt)?
An ac series circuit consists of a voltage source of frequency 60 Hz and voltage amplitude V, a 788-Ω resistor, and a capacitor of capacitance 2 μF. What must be the source voltage amplitude V for the average electrical power consumed in the resistor to be 587 W? There is no inductance in the circuit.
A 120-V AC circuit has a 20.0-Ω resistor connected in series to a capacitor for which the capacitive reactance is XC = 31.0 Ω . What is the average rate at which energy is dissipated in the circuit? If the resistance in the circuit is 25.0 Ω, what would the capacitive reactance have to be in order for the power factor to be 0.27?
- There is a 120 Volt (rms) source with a frequency of 60 Hz connected to a resistor and a 44.2 microfarads capacitor in series. For a what value resistance will give a rms current of 1.2 A?
A 3490 - Ω resistor and a 1.7 - μF capacitor are connected in series across a generator (60.0 Hz, 120 V). Determine the power delivered to the circuit.