An impedance coil having a resistance of 25 ohms and an inductance of 20 mH is connected in parallel with a variable capacitor. For what value of C will the circuit have a power of 1) unity 2) 0.8 lagging 3) 0.9 leading? When the source is 90 volts, 400 cps

An impedance coil having a resistance of 25 ohms and an inductance of 20 mH is connected in parallel with a variable capacitor. For what value of C will the circuit have a power of 1) unity 2) 0.8 lagging 3) 0.9 leading? When the source is 90 volts, 400 cps

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

Related questions

Q: Ex. 85 : A potentiometer wire has a length of 4 m and a constant potential difference is maintained ...

Q: 100 si (2V = t.

Q: 3.a. Which type of equipment is used to bridge sections of horizontal, backbone, or patch cable? A. ...

A: In terms of the amount of optical power reflected, fusion splices offer a major advantage over rival...

Q: Solve the curents on the circult using Kirchoffs Low 10 2 C 1, 208 40 SL 1,1 a

Q: 2. What are the methods of starting three phase induction motor?

A: Electrical machines can be either generator , transformers or motors. They can be either Ac machines...

Q: Q. 14: Find the equivalent capacitance across points A and B. 12 uF |11 uF 6 µF A- 2 µF B 13 5 µF 4 ...

Q: Suppose that a continuous-time linear time-invariant system has the following system transfer functi...

Q: The initial rate of current rise in an RL circuit is 300 A/s when 120 V is suddenly impressed. Find ...

Q: "The inverse Laplace transform of the following function is: F(s) = %3D s2+4 O a. f(t) = e4r(1) O b....

A: following inverse laplace transform formulas are useful for solving given problem L-1(1S2)=t L-1(1(...

Q: 3. Find the value of RL for maximum power transfer and compute the maximum power delivered to the lo...

Q: Schematic Diagram (Series RC) R1 = 1kQ R1 R2 = 100 Vp C1 = 1µF – Metallized film 6V>, at 500HZ. -C1 ...

A: Given Series RLC circuit R1=1K ohm. R2=10 ohm. C1=1 uf VP=6v

Q: Equate Eq 1 to Eq 2 220 110 Ja (377L) R (154L) R+(377L) R(157L) 110-V 25 H: 220 l110 X 3R 43533 L R-...

A: Student asked to provide detailed explanation for one step which he is not understand. So I solved a...

Q: DC motor is shunt excited. It has a rated voltage VT, rated out put power Pout and rated speed Nout....

Q: 7.54 Obtain the inductor current for both t 0 in each of the circuits in Fig. 7.120. 12Ω 2 A t = 0 ...

A: We need to find out current for given circuits

Q: Light Emitting Diode Cite/give the following details of the diode: Schematic symbol Construction C...

A: Given, Light emitting diode. We have to give the details of the the Above diode. Please find the bel...

Q: 2. The star-connected rotor of an induction motor has a standstill impedance of (0.4 + j4) ohm per p...

Q: Q) 13. For the network of Fig. 5.153 : 12 V 5.6 k a. Calculate I B, IC, and re. b. Determine Zi and ...

A: As per company guidelines we can solve only first three sub parts kindly post another parts separate...

Q: Consider the circuit shown: R1 100 O V1 sine ( 60 Hz R2 100 O 120 Vrms 4:1 1:2 Calculate the magnitu...

Q: Find the equivalent resistance of the circuit given in figure 1 between the following points (a) A a...

A: Since you have posted the questions with multiple subpart so we are supposed to answer 3 subpart.

Q: Q1) Use the analytical method, design a lossless L-section network to match a load impedance of 80+j...

A: Given that We need to use analytical method to design a L-Section network Load impedance Zl=80+j10 ...

Q: i) If the input is 10V sine wave, plot the output voltage. The Zener voltage of D1, D2 and D3 are 3....

A: To convert the Ac into DC,Rectifiers circuits are used. There two types of Rectifiers. Controlled R...

Q: 3. Find the value of RL for maximum power transfer and compute the maximum power delivered to the lo...

Q: 4. Discuss briefly is a FPGA microprocessor.

A: Since you have asked multiple question, we will solve the first question for you. If youwant any spe...

Q: 12V Rc1 1kQ R3 52.1kQ Rc2 4.7kQ R1 $5.6kQ C2 C3 10µF Q2 10µF С1 Q1 2N2222 2N2222 10pF R2 $4kQ R4 5.1...

Q: Given L=4 H and R=13 Ohms, the equivalent input impedance of the below circuit in S-domain is L R O ...

Q: Consider the circuit shown below. The transistor parameters are VTNI = 1V, VrN2 = 1.5V, KNi = 1mA/V²...

Q: 3) Determine Vo and Io for the networks. to +20v -SV oVo +8V •Vo -20V 6.8kn Si Si 4.7kn Si (c) (a) C...

Q: Draw the waveform of vo of the op-amp circuit shown for the given waveform of vi. Label all importan...

A: We need to draw output waveform for given circuit

Q: X Y F 0. 1 1 1 1 1 1.

A: Given here truth table and asked to find the simplified boolean or logic expression F for the truth ...

Q: 1. Solve for I rms. a = 0.785 and b = 3.37. i(wt) = 21.8 sin (wt – 1.312) – 50 + 75.0e¯@f/3.77 A for...

A: Given : i(ωt)=21.8sin(ωt-1.312)-50+75e-ωt3.77 A for 0.785≤ωt≤3.37 rad We need to find Irms. Given:...

Q: +16 V 3.6 kN 470 k2 ovc Ic IB B = 120 0.51 k2

A: The solution is given below

Q: (a) For each of these blocks now write down the transfer that will describe the input- output charac...

Q: 3H

Q: Given the vector field in cylindrical coordinate system: A = 2psinocosoa, + (rcos o-rsin o)as + pcos...

Q: Determine the voltmeter reading in Figure 2, if the 4.7 kΩ (R3) resistor is open. What is the readin...

A: Resistors, inductors and capacitors form an integral part of any electrical circuit. A source, eithe...

Q: 2. Using Wye-Delta Transformation, determine the equivalent resistance Rab of the given circuit. Ple...

Q: Solve for: Vss (in V) Rx in (kilo-ohms) Ry in ohms

A: Given,The parameters are as follows,UJT standoff ratio, η=0.6UJT interbase resistance, RBB=24 kΩVv=0...

Q: Using Cauchy's integral formula (chapter 14.3), integrate counterclockwise -dz z2 + 4z + 3 where C i...

Q: A- Define Impedence. Mention the difference between Impedence and Resistance ? B- A coaxial cable's ...

A: Brief description : In the above given question they want to know the definition of impedance and th...

Q: What is the minimum necessary speed? Six computer workstations are connected to a synchron...

A: Multiplexing is a process or sending multiple signal over a single data channel. Time Division mult...

Q: TM Thermal Visayas Incorporated Power Plant generates actual load of energy for 1.352 MW supplying (...

A: Here is your answer! I hope this will help you.

Q: 3. Determine the DC (currents, terminal voltages and inter-electrode voltages) parameters of the cir...

A: The solution is given below

Q: In a certain metallic conductor, the uniform electric flux density is present in 0.555pC/m^2. The ma...

Q: For the system as shown below, what is the steady-state error that can be expected for the following...

Q: In the circuit below, & = 10 V, R1 = 100 2, R2 = 150 2, R3 = 300 2, and R4 = 200 %3D 2. R R. A. Dete...

A: The solution is given below

Q: 5. Find vo of the circuit of figure using the superposition theorem ww 75 sin 5t V( 0.2 F 1H 6 cos 1...

A: We are supposed to be answer of first question as per guildlines.

Q: II) For the circuit shown below, the line voltage at the load side is 280 Vrms. The load absorbs 6 k...

Q: Explain any one type of enclosure used in DC motors with necessary diagram.

A: Electrical machines can be either generator , transformers or motors. They can be either Ac machines...

Q: 14 P.14 - A three-phase induction motor with 4 magnetic poles, 60 Hz, rotates with a speed of n=175...

A: Slip: It is the difference between the synchronous speed of the motor and the rotor speed of the mot...

Q: Using the last 3 digits of your student number, (i.e. 190555) - 555 microohms will be the value of y...

Question

An impedance coil having a resistance of 25 ohms and an inductance of 20 mH is connected in
parallel with a variable capacitor. For what value of C will the circuit have a power of

1) unity

2) 0.8 lagging

3) 0.9 leading?

When the source is 90 volts, 400 cps.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step by step

Solved in 6 steps with 6 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Sinusoids and Phasors of Alternating Circuit

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

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?
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?
Let a 100V sinusoidal source be connected to a series combination of a 3 resistor, an 8 inductor, and a 4 capacitor. (a) Draw the circuit diagram. (b) Compute the series impedance. (C) Determine the current I delivered by the source. Is the current lagging or leading the source voltage? What is the power factor of this circuit?
List the five capacitor replacement rules.
A postage stamp mica capacitor has the following color marks starting at the upper left dot: yellow, violet, brown, green, no color, and blue. What are the capacitance value, tolerance, and voltage rating of this capacitor?
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 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 utility company plans to connect a total of 20uF of capacitance to a 7200 volt line. To make this connection four capacitors will be connected in series. What is the capacitance of each capacitor? Answer is 80uF. Now what is the minimum AC voltage rating of each capacitor?
A utility company plans to connect a total of 20uF of capacitance to a 7200 volt line. To make this connection four capacitors will be connected in series. What is the capacitance of each capacitor?
a)For the inductive element of Figure 1 , the current in phasor form is B) the voltage in phasor form for figure 1 is C)the impedance of the inductor for figure 1 is
Design a circuit to limit a 20 V rms sinusoidal voltage to a maximum positive amplitude of 10 V and a maximum negative amplitude of using a single 14 V dc voltage source.
A utility company plans to connected a total of 20uF of capacitance to a 7,200 volt line. To make this connection, four capacitors will be connected in series. What is the capacitance of each capacitor?