3: A circuit consists of a capzcitor C= 25üF with inirial charge of 2500x10 Couics.ab connected in scries with a resistance R-1KO at t0 to a DC source V 300 volts: 1- Calculate the voltage across the capacitor for t20. 2- Calculate the circuit's current for.t20" 3- Sketch the voltage and current versus time. 4- Calculate the circuit's curent for t 2 0* if an AC source v(t)= 300 sin(314t) is TRVL 30.

3: A circuit consists of a capzcitor C= 25üF with inirial charge of 2500x10 Couics.ab connected in scries with a resistance R-1KO at t0 to a DC source V 300 volts: 1- Calculate the voltage across the capacitor for t20. 2- Calculate the circuit's current for.t20" 3- Sketch the voltage and current versus time. 4- Calculate the circuit's curent for t 2 0* if an AC source v(t)= 300 sin(314t) is TRVL 30.

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

You are working in an industrial plant. You have been instructed to double the capacitance connected to a machine. The markings on the capacitor, however, are not visible. The capacitor is connected to 560 volts and an ammeter indicates a current of 6 amperes flowing to the capacitor. What size capacitor should be connected in parallel with the existing capacitor? What is the minimum AC voltage rating of the new capacitor? What is the minimum DC voltage rating of the new capacitor? What is the minimum KVAR size that can be used in this installation?
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?
You are an electrician working in an industrial plant. You discover that the problem with a certain machine is a defective capacitor. The capacitor is connected to a 240-volt AC circuit. The information on the capacitor reveals that it has a capacitance value of 10 mF and a voltage rating of 240 VAC. The only 10-mF AC capacitor in the storeroom is marked with a voltage rating of 350 WVDC. Can this capacitor be used to replace the defective capacitor? Explain your answer.
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?
You are working as an electrician in a large steel manufacturing plant, and you are in the process of doing preventive maintenance on a large DC generator. You have megged both the series and shunt field windings and found that each has over 10 M to ground. Your ohmmeter, however, indicates a resistance of 1.5 across terminals S1andS2. The ohmmeter indicates a resistance of 225 between terminals F1andF2. Are these readings normal for this type machine, or is there a likely problem? Explain your answer.
You find that a 25-F capacitor connected to 480 VAC is defective. The storeroom has no capacitors with a 480-VAC rating. However, you find two capacitors rated at 50 F and 370 VAC. Can these two capacitors be connected in such a manner that they can replace the defective capacitor? If yes, explain how they are connected and why the capacitors will not be damaged by the lower voltage rating. If no, explain why they cannot be used without damaging the capacitor.
The following data was collected in a lab where a 1000 uF capacitor was discharged using a 3 volt power supply. The capacitor was in series with a resistor of unknown value. a. Draw an RC circuit diagram where a capacitor can be charged and discharged in the same circuit using asingle pole double throw switch.b. Construct a graph of showing the discharge curve of the capacitor’s voltage with time using the databelow.c. Linearize the data below to construct a straight line with a constant slope.d. The graphs should be labeled and titled. The axes should be labeled with appropriate units.e. Using the the linearized data calculate the time constant for the RC circuit.f. Calculate the value of the unknown resistor.g. Show that the capacitor is nearly discharged after 5 time constants.
Electrical Engineering --question 1-- Calculate the theoretical voltages across the resistor and inductor for 10 kHz and 60 kHz using the 680Ω theoretical resistance, 3.3 mH inductance, and 5-V source. Demonstrate the step-by-step process. Answer must be in Polar form. --question 2-- Calculate the theoretical voltages across the resistor and capacitor for 500 Hz and 1750 Hz using the 680Ω theoretical resistance, the observed capacitance, and the 5V source. Demonstrate the step-by-step process. Answer must be in Polar form.
Consider an LRC series circuit with a resistance of 2.5 ohms, capacitance of 0.1 farad, aninductance of 0.1 henry and electromotive force, volts. Given thatAssume there is no initial charge and no initial current on thecapacitor.a) Find the equation of the charge q(t), on the capacitor at any time t.(Do not solve the coefficients).b) Name two methods that can be used to find the particular solution qp(t).c) Write your assumption to solve for the particular solution based on each methodanswered in (b).d) State the equation of the current, i(t).e) State the transient and the steady-state current.
Enumerate five step-by-step procedures of Norton’s theorem method in application to electric circuit problem solution or analysis.
4- Can value of the string efficiency being equal to 100%. Explain your answer.5- Outline methods used to equalize the potential across the units.6- Why an insulator is represented as a capacitor C? What are the assumptionmodes?
DETERMINE A. V1 if the 1000uF capacitor is not connected B. V1 is the 1000uF capacitor is connected C. Ripple voltage of problem B D. V2 if 1000uF capacitor is not connected E. V2 if 1000uF capacitor is connected F. From problem C solve for Is, Il, and Ic (OUR SUBJECT IS INDUSTRIAL ELECTRONIC)