What is the r.m.s value of an a.c. quantity? Obtain expression for the r.m.s. value of a sinusoidal current in terms of its maximum value. 2. Deduce an expression for the average power in a single phase series R.L. circuit and therefrom explain the term power factor

What is the r.m.s value of an a.c. quantity? Obtain expression for the r.m.s. value of a sinusoidal current in terms of its maximum value. 2. Deduce an expression for the average power in a single phase series R.L. circuit and therefrom explain the term power factor

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.13MCQ

See similar textbooks

Related questions

Q: The system radic of octal is 8, since any of the 8 values from 0 to 7 can be written as a single dig...

A: any of the 8 values from 0 to 7 can be written as a single digit.

Q: The MOTOROLA MRD821 photodiode has an optimum wavelength of 940 nm. Determine the optimum operating ...

Q: 15 A the other draws 40 A andthe third 52 A What size ofthe conductor in terms of ampacity may be us...

A: The capacity of feeder circuit = vector sum of all the current drawn by motor because for the motor ...

Q: Q 3. For the circuit shown in Fig. 1, calculate the current through all the branches of the circuit ...

A: Given

Q: X*(s) G,(s) V(s) G,(s) T E (s) G,(s) U(s) G,(s) Y*(s) R(s) T T B*(s) H(s) T

Q: A Silicon diode is operating at a room temperature of 25 °C and has a reverse current of 10 nA. Solv...

A: Saturation current of a diode is temperature dependent. For Ge and Si, their saturation current ris...

Q: For a single mode fiber with V= 1.3526, b = 0.1652, n = 1.468, n2 = 1.46612, and a = 4.5 %D %3D um, ...

A: Given, We have some values. We have to find propogation constant Beta Please find the below attachm...

Q: A 30 kW, 460 V, 1180 rpm, 3 -phase, 60 Hz, Y-connected induction motor has a full-load efficiency of...

Q: 100L R. C. way of a fully labelled graph with explanations and any accompanying calculations. Determ...

Q: Given the zener voltage at 9V and the zener power at 1W, what is the range of allowable values of Iz...

A: Given data, Zener voltage VZ=9 V Zener power Pz=1 W

Q: The diode (blue line) should be at -10V not -8V

A: The Diode-based circuit can be designed in LTspice by selecting the general diode and changing the m...

Q: then vector A

Q: Name the logic circuit AD inputs output Find the expression of F and simplify

Q: Given zener voltage at 9V, input voltage at 12Vdc to 15Vdc and ILmax at 40mA. What is Rsmin if Izmax...

Q: Calculate the threshold voltage shift if charge density is Qit=1011 cm-2 and the oxide thickness is ...

Q: 1. In the network shown, the switch is opened at t = 0. Find i(t) at t > 0. t = 0 100 ohms 100 ohms ...

A: as per our guidelines we are supposed to answer?️ only one question. Kindly repost other questions a...

Q: A small part of a power systems is shown in the single-line dlag-am in Figure 1. Grid Transformer 1 ...

Q: Determine I, V1, V2, and Vo for the series dc configuration. (Use 2nd approximation) ANS. I = 2.07 m...

Q: inductors have with magnetism and electromagnetism

A: Inductor stores energy in the magnetic domain, magnetism means inductor produces a magnetic field wh...

Q: Find the value of speed of stator

Q: Q4. What do you mean by circle diagram of a 3-phase induction motor? Answer the following: (i) (ii) ...

A: A circle diagram, a graphical representation of the performance of an electrical machine. This is co...

Q: 12 mtt juL @Sし 8 MF 352

Q: 5. Find the frequency spectrum of the following periodic square wave signal in two forms and draw ou...

Q: A particular MOSFET has VA = 10 V. For operation at 10 μA and 100 μA, what are the expected resistan...

Q: Find the LAPLACE TRANSFORM of

A: In this question we need to find a Laplace transform of the given signal.

Q: A discrete time system with input u[k] and output y[k] is described by the difference equation y[k] ...

A: A discrete-time system with input u[k] and output y[k] is described by the difference equation: y[k]...

Q: 20 V ID AGe Si

Q: HAs) C(s) R(s} + G,(s) Hals)

Q: V1 R Vin Vo C R1 R2

A: Given

Q: 42. a. Deternmine VL. I, Iz, and Ig for the network of Fig. 2.186 if R 180 0. b. Repeat part (a) if ...

Q: Oc. 0.50 Amps Determine the value of Current I. 14 V + 37 N 18 V 23 N 27 N 0.58 Amps OA. 0.64 Amps O...

A: Given circuit,

Q: Fibre optic transmission line of unknown length L has an attenuation coefficient of 0.04 km1. When a...

Q: The doping concentration used in the collector region of silicon BJT is Nc = 5x 1015 cm3 and the pun...

A: It is given that: NC=5×1015 cm-3=5×1021/m3Vpt1=60 VW=0.75 μm=0.75×10-6 m

Q: A 230 kV transmission line has an impedance of 50 cis 78 ohms and a capacitive reactance of 1,200 oh...

Q: dr +7x: dt 5 cos 2t

Q: [DC machine with armature reaction] A 300kW, 240V, 900rpm separately excited, non- compensated DC ge...

A: In a DC machine, two sources of magnetic fluxes are present; 'armature flux' and 'main field flux'. ...

Q: Q6 The following test results were oblalined on a 275-kW, 3-0, 6,600-V non- salient pole type genera...

A: Current: This is the time rate of the change of the charges and its unit is ampere.

Q: Given zener voltage at 9V, input voltage at 12Vdc to 15Vdc and ILmax at 40mA. What is Rsmax? Choices...

Q: For each of the following functions, indicate if it exhibits even symmetry, odd symmetry, or neither...

A: The solution is given below

Q: In a group of3 motors, one draws 15 A the other draws40 A andthe third 52 A What size ofthe conducto...

A: Motor 1 load = 15A Motor 2 load = 40A Motor 3 load = 52A These 3 motors draws load from the supply. ...

Q: Assume the op-amps in the following circuit are ideal.

Q: How does the internal resistance of the multimeter (in voltage setting) affect the charging/discharg...

A: Given: Effect of Internal resistance of the multi-meter on capacitor

Q: C3d D1 D2 D3 D4 Us

A: Multiple diodes and capacitors are used to increase the voltage level at output by charging discharg...

Q: Find the voltage in the 60 ohms resistor. 20 2 30 Ω 40 2 www 50 N 60 2 102 20 V 100 V 50 V www ww

A: This question belongs to circuit theory . It is based on the concept of Nodal analysis in the circui...

Q: QUESTION 3 A 450nF capacitor, a 820 ohm resistor, and a function generator are all connected in para...

A: The solution is given below

Q: 22 Refer to the following circuit and solve the following: a. Total Capacitance b. Find the total...

Q: Two resistors with resistances of 11 Q and 20 Q are connected in parallel. The parallel combination ...

Q: 1. A moving-coil instrument gives f.s.d. for a cur- rent of 10 mA. Neglecting the resistance of the ...

Q: A generating station has Wvo 50 MW units each running for 8,500 hours in a year and one 30 MW unit r...

Q: Give your final answers in at least 2 decimal places - make it 3 or 4 decimal places whenever requir...

A: Given: Power, P0=110 hpP0=110×746 P0=82060 W VL=450 V Frequency, f=50 Hz Number of poles, P=4 Powe...

Concept explainers

Fourier Series

Most of the incidents studied in the field of Engineering and Science as a function of time. For example, current and voltage are in the alternating current circuit. These occasional activities can be analyzed in the activity components (fundamental frequency and harmonics) through a process called Fourier analysis.

Question

1. What is the r.m.s value of an a.c. quantity? Obtain expression for the r.m.s. value of a sinusoidal current in terms
of its maximum value.

2. Deduce an expression for the average power in a single phase series R.L. circuit and therefrom explain the term
power factor

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 by step

Solved in 4 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

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

The instantaneous voltage across a circuit element is v(t)=400sin(t+30)volts, and the instantaneous current entering the positive terminal of the circuit element is i(t)=100cos(t+10)A. For both the current and voltage, determine (a) the maximum value, (b) the rms value, and (C) the phasor expression, using cos(t) as the reference.
If the rms phasor of a voltage is given by V=12060 volts, then the corresponding v(t) is given by (a) 1202cos(t+60) (b) 120cos(t+60) (c) 1202sin(t+60)
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?
The rms value of v(t)=Vmaxcos(t+) is given by a. Vmax b. Vmax/2 c. 2Vmax d. 2Vmax
The instantaneous power absorbed by the load in a single-phase ac circuit, for a general R LC load under sinusoidal-steady-state excitation. is (a) Nonzero constant (b) Zero (c) Containing double-frequency components
Under balanced operating conditions, consider the three-phase complex power delivered by the three-phase source to the three-phase load. Match the following expressions, those on the left to those on the right. (i) Realpower, P3 (a) (3VLLIL)VA (ii) Reactive power, Q3 (b) (3VLLILsin)var (iii) Total apparent power, S3 (c) (3VLLILcos)W (iv) Complex power, S3 (d) P3+jQ3 Note that VLL is the rms line-to-line voltage, IL is the rms line current, and is the power-factor angle.
a. Find the average power b. Find the power factor. Is it lagging or leading? c. Find the sinusoidal expressions for the currents and voltage.
C) Find the average power delivered to the circuit and Find the power factor of the circuit, and indicate whether it is leading or lagging then Write the sinusoidal expressions for the currents and voltage.
1. Write down a formula for the three-phase power factor, assuming perfectly sinusoidal and symmetrical conditions, using line-line voltage measurements. 2. Write down a formula that relates three-phase apparent power to active and reactive power. 3. Draw a graph that depict single-phase waveforms for a purely sinusoidal 50 Hz voltage and a lagging current.
For the circuit in the figure below, determine the load impedance that maximizes the average power drawn from the circuit in the figure below. What is the maximum average power?
1. a) Find the rms magnitude and the phase angle of ICA in the circuit shown. 2. b) What percent of the average power delivered by the three-phase source is dissipated in the three-phase load?
compute the RMS value for the current waveform and ys them to determine average power supplied to the resistor....