1- Please mark the correct answer.In the circuit shown below, the capacitor is completelyuncharged before the switch S is closed at time t = 0. Inthe circuit, &₁ = 12 V, ₂ = 10 V, R₁ = 100, R₂ = 12,R3 = 9, R₂ =10, and C = 4 µF. What is the value ofthe current flowing through each resistor, just after theswitch S is closed?R₁(A) R₂(A) R3 (A)17/171/112A)0B) 12/17C)0D)1E) None of the above.15/171/111R4(A)15/171/111R₁3SR₂mCR3RA€2

Answered: Image /qna-images/answer/ec7fb374-9fe7-4e2c-a71e-1ce8afa068d2.jpg

Answered: 1- Please mark the correct answer. In…

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter20: Capacitance In Ac Circuits

Section: Chapter Questions

Problem 5PP: Three capacitors having capacitance values of 20F,40F, and 50F are connected in parallel to a 60 -...

See similar textbooks

Similar questions

You are a journeyman electrician working in an industrial plant. Your task is to connect an inductor to a 480-V, 60-Hz line. To determine the proper conductor and fuse size for this installation, you need to know the amount of current the inductor will draw from the line. The nameplate on the inductor indicates that it has an inductance of 0.1 H. An ohmmeter reveals that it has a wire resistance of 10 . How much current should this inductor draw when connected to the line?
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?
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.
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?
A pure capacitive circuit is connected to a 480-volt, 60-Hz power source. An ammeter indicates a current flow of 24 amperes. The circuit current must be reduced to 16 amperes by connecting a second capacitor in series with the first. What is the value of the existing capacitor? What value capacitor should be connected in series with the original capacitor to limit the circuit current to 16 amperes?
In the figure ɛ = 10.0 V, R1 = 4.00 N, and R2 = 1.00 N. The inductor is ideal. If the switch is closed for a long time, what is the current through the inductor. Give your answer in A. Şekildeki devrede ɛ = 10.0 V, R1 = 4.00 N , ve R2 = 1.00 N olarak verilmişlerdir. Solenoidin iç direnci yoktur. Anahtar kapatıldıktan çok uzun süre sonra solenoidden geçen akım A cinsinden nedir. R1 R2 L E Yanıtınız
An uncharged capacitor and bulb are connected in series with a battery. Describe and explain what happens to thebulb when the switch is closed. What determines when the capacitor stops charging? What happens if the capacitoris turned around after the switch has been closed a long time? Include where charge is flowing the circuit. Alsodescribe the different roles of the capacitor and the battery.
In the figure R1 When the switch is opened after having been closed for a long time, the current in the inductor drops from 1.00 A to 0.250 A in 0.200 s. = 4.00 N , and R2 = 1.00 N. The inductor is ideal. What is the inductance of the inductor in mH? = 1.00 N olarak verilmişlerdir. Şekildeki devrede R1 = 4.00 N , ve R2 Solenoidin iç direnci yoktur. Anahtar uzun süre sonra kapalı kaldıktan sonra açılırsa solenoidden geçen akım 0,200 s içinde 1,00 A değerinden 0,250 A değerine düşmektedir. Solenoidin indüktansı mH cinsinden nedir? %3D R S E -R2 L
Q1. In the adjacent figure each of the two capacitors mounted in parallel has a value C, the resistor has a value R, and the power supply has value ɛ = 25 V. Upon closing the key S the charging process of the two capacitors starts. The initial value of the electric current was Io = 25 mA, as shown in the table below, then the electric current decreased until it vanished at t = 00. The table below shows the values of the electric current every two seconds as measured by the ammeter A. t (s) 6 8 2 4 10 12 14 16 18 I (mA) q (mC) 25 20 16 13 10 7 4 40 55 66 75 89 97 a) Determine the value R of the resistor in kQ units. b) Plot the I-t graph (electric current versus time). c) Determine the circuit constant time t from the I-t graph. d) Determine the value C of each capacitor in µF units. e) Complete the table by evaluating the electric charge q(t) on each capacitor at the moments t = 2,12, 16, oo, ww
1. A purely resistive circuit the current is leading by 90° with respect to voltage. 2. A purely inductive circuit the current is lag behind the voltage by 90°. 3. A purely capacitive circuit the current is lead by 90° with respect to the voltage. 4. A capacitor element stored magnetic energy. 5. An inductor element stored electrical energy. 6. Resistor elements consume power. 7. Angle between current and voltage is called power. 8. The power factor angle for a purely resistive is zero. 9. The power factor angle for a purely inductive load is -90°. 10. The power factor of a purely capacitive is leading.
Q1. In the adjacent figure each of the two capacitors mounted in parallel has a value C, the resistor has a value R, and the power supply has value ɛ = 25 V. Upon closing the key S the charging process of the two capacitors starts. The initial value of the electric current was Io = 25 mA, as shown in the table below, then the electric current decreased until it vanished at t = 00. The table below shows the values of the electric current every two seconds as measured by the ammeter A. t (s) 6 8 2 4 10 12 14 16 18 I (mA) 25 20 16 13 10 7 4 q (mC) 40 55 66 75 89 97 a) Determine the value C of each capacitor in µF units. b) Complete the table by evaluating the electric charge q(t) on each capacitor at the momentst = 2,12, 16, ∞. ww

SEE MORE QUESTIONS

Recommended textbooks for you

Delmar's Standard Textbook Of Electricity

Electrical Engineering

ISBN:

9781337900348

Author:

Stephen L. Herman

Publisher:

Cengage Learning

Delmar's Standard Textbook Of Electricity

Electrical Engineering

ISBN:

9781337900348

Author:

Stephen L. Herman

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS