There is 50 mA of current through a coil with 250 turns. The flux is 150 µWb. What is the mmf? What is the reluctance of the circuit? A. Fm = 1.25 At - R=4.3x10-3 At/Wb B. Fm = 2.25 At - R=8.3x10-3 At/Wb C. Fm = 1.25 At - R=8.3x10-3 At/Wb D. Fm = 1.25 At - R=8.3x10-2 At/Wb

There is 50 mA of current through a coil with 250 turns. The flux is 150 µWb. What is the mmf? What is the reluctance of the circuit? A. Fm = 1.25 At - R=4.3x10-3 At/Wb B. Fm = 2.25 At - R=8.3x10-3 At/Wb C. Fm = 1.25 At - R=8.3x10-3 At/Wb D. Fm = 1.25 At - R=8.3x10-2 At/Wb

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

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.8MCQ: An ac resistance is higher than a dc resistance. True False

See similar textbooks

Related questions

Q: A coil that con sists of 450 windings is wound around a bakelite rin g. The mean diameter of the…

A: We are authorized to answer only 1 question at a time since you have not mentioned which question…

Q: N=15 windings are wound on a square-section iron core with a square outer appearance. If the…

A: TRANSFORMER: The transformer transfers power from one circuit to another circuit without a change…

Q: 5. A toroidal core with a mean circumference of 100 cm and a cross-sectional area of 10 cm2 is wound…

A: In this question, Find the current in the core to generate the flux = 1mWb Number of turns = 500…

Q: A Nexmeter is connected to a search-coil having 600 turns and mean area of 4 cm. The search coil is…

Q: 4. A magnetic circuit has a length of 100 cm and cross-sectional area of 5 square cm. The total flux…

Q: Consider the magnetic circuit in Figure. Assuming that the core u= 1000µo has a uniform cross…

A: From the figure reluctance of the core and airgap are in series So total reluctance(RT) seen by…

Q: Consider the magnetic circuit shown in figure u = 2000 Ho S S2 5 cm/ T04 cm 5 сm S2 6 cm -S2 6 cm If…

A: The given magnetic circuit is, And

Q: w Coils, one with 3500 turns and anothes with us00 tuons, ane Coected in Sach a way -that 60 % of he…

A: Mutual Inductance The interaction of one coil's magnetic field on another coil as it induces a…

Q: What is the flux produced when a 2.5 A current flows through 500 turns coil wound in nonmagnetic…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: The flux linking to 200 turns coil changes from 2 mWb to 5 mWb in 1ms to 3 ms. Determine the induced…

Q: 3- A magnetic core with an air gap is shown in below Figure. The depth of the core is 3 cm, the…

A: Given lg =4 cmN=100μr =2000μo =4π×10-7

Q: An infinitely long straight wire carrying current = 2A as shown in figure. What will be the total…

Q: Consider the magnetic circuit in Figure. Assuming that the core u= 1000µo has a uniform cross…

A: The solution is given below

Q: A coil of 800 turns is wound on a wooden former and a current of 5A produces a magnetic flux of…

A: In this question we will find inductance and induced emf.......

Q: We may attach more than 2 winding to a magnetic core to generate different levels of voltage and it…

A: A multi windings transformer can have more than one primary and more than one secondary windings.…

Q: %3D Consider the magnetic circuit shown in figure u = 1500 HO If S1= 5 cm2 and S2 = 10 cm2 then the…

Q: Consider the magnetic circuit in Figure. Assuming that the core u= 1000µo has a uniform cross…

Q: 35. According to Lenz law, the induced voltage will oppose the flux producing it. a. True b. False

A: In this question we need to choose correct option.

Q: 3-A magnetic core with an air gap is shown in below Figure. The depth of the core is 3 cm, the…

A: To find the current that is required to produce Total flux of 0.00052 WB.

Q: Full scale deflecting torque of a 20A -5 moving iron ammeter is 5 x 100 N-m, the rate of change of…

A: Given, Full scale deflecting torque, τd=5×10-5 N-m Current, I=20 A

Q: determine the current flowing in the winding.

Q: Two unlike parallel force, each of the magnitude 50 KN are 200 mm apart from each other. what will…

Q: As a summer intern at a research lab, you are given a long solenoid that has two separate windings…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: The applied torque and the induced torque in dc machines are one and the same. a. True b. False

A: Applied torque : Torque is defined as the force applied perpendicularly to a lever multiplied by…

Q: At what rate the flux must be varied to measure 12 V across the terminal of 300 turns coil?

Q: A toroidal coil, with a circular cross-sectional area of 0.2m2. The coil inductance is 0.28H. The…

A: Given: A=0.2 m2L=0.28 HN=500 turnsψ=498

Q: What is the voltage induced in the secondary coil of transformer with 400 turns when the varying…

A: We need to find out voltage for transformer and current for given force

Q: Consider the magnetic circuit in Figure. Assuming that the core u= 1000uo has a uniform cross…

Q: flux through each turn of a 100 turn coil is (t3-2t) mWb, where t is in seconds. Find the magnitude…

A: In this question flux is given through coil..We have to find magnitude of induced emf..

Q: Consider the magnetic circuit in Figure. Assuming that the core u= 1000µo has a uniform cross…

A: From the Electrical equivalent circuit of magnetic circuit

Q: The field winding of a dynamo may be taken to have a constant inductance of 120 H and an effective…

A: When the supply is interrupted, the current through the inductor is 5 A. As the indicator does not…

Q: A wire carries a steady current =0.75 A in Figure. The distances are a=0.5 m, b=0.9 m, and c=0.8 m.…

A: Every current carrying wire produces its own magnetic field. The direction of magnetic field is the…

Q: 3- A magnetic core with an air gap is shown in below Figure. The depth of the core is 3 cm, the…

A: Reluctance Reluctance is a property of magnetic material which opposes the flux in the magnetic…

Q: Consider the magnetic circuit in Figure. Assuming that the core u= 1000µo has a uniform cross…

Q: An iron circuit with a small0.75 mm air gap is shown in Figure 1. A 6000 turn coil carries a current…

A: According to Ohm's law of the magnetic circuit, the Magnetomotive force generated by current and…

Q: A magnetic circuit has a length of 100 cm and cross-sectional area of 5 square cm. The total flux is…

A: Magnetic field strength = mmf/ mean length. Mmf = NI.

Q: 3- A magnetic core with an air gap is shown in below Figure. The depth of the core is 3 cm, the…

Q: How many turns are on a coil if a current of 3.8A produces a magnetic flux of 2.7mWb in a magnetic…

A: Given, Current = 3.8 A Flux= 2.7mWb Reluctance = 1.4 MAT/Wb

Q: You have a solenoid with an into all current of 577A and a turn dentistry of 6601 loops/m What is…

A: we need to find out a. intial magnetic field through the solenoid ? b. final magetic field through…

Q: Q5/ A ring has a diameter of 21 cm and a cross-section area of 10 cm2. The ring is made up of…

A: In this question we need to find a total AT required to produce a given flux.

Q: Q8/ A constant potential difference of 250 V is applied to a field winding at 15 °C and the current…

Q: 4.83 A certain fluxmeter has the following specifications: Air gap flux density = 0.05 Wb/m2 Number…

A: Given: A certain flux meter has following specifications, Air gap flux density = 0.05 Wb/m2 Number…

Q: Consider the magnetic circuit shown in figure u = 1000 µo S2 S2 5 cm 14 ст 5 cm If S1= 5 cm2 and S2…

Q: A dc machine with 22 loops rotor with 6 parallel current path exists in a magnetic field of 12 poles…

A: Given: Loops in the machine is 22.

Q: Consider the magnetic circuit in Figure. Assuming that the core u= 1000µo has a uniform cross…

Q: An iron circuit with a small 0.75 mm air gap is shown in Figure 1. A 6000 turn coil carries a…

Q: the vertical limbs of the core a=16mm, the width of the horizontal limbs b=13mm, the distance…

A: Solution- Given Vertical limbs, a= 16mm horizontal limbs b = 13 mm d = 62mm w = 17 mm N1=170 N2 =…

Q: 4-A magnetic core with an air gap is shown in below Figure. The depth of the core is 3 cm, the…

Q: For the following toroid, the flux is 440μWb, r1= 8 cm and r2=12 cm. The flux density is O 0.0875 T…

Q: 7. A coil having a resistance of 20 ohms and an inductance of 0.75 henry is connected in series with…

A: In this question, We need to determine the rate of current change and power delivered by the…

Concept explainers

DC Generator

An electromechanical machine which converts input mechanical energy to respective output electric energy is called a generator.

Question

100%

There is 50 mA of current through a coil with 250 turns. The flux is 150 µWb.

What is the mmf? What is the reluctance of the circuit?

	A.	Fm = 1.25 At - R=4.3x10^-3 At/Wb
	B.	Fm = 2.25 At - R=8.3x10^-3 At/Wb
	C.	Fm = 1.25 At - R=8.3x10^-3 At/Wb
	D.	Fm = 1.25 At - R=8.3x10^-2 At/Wb

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

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.