Electronics Fundamentals: Circuits, Devices & Applications
8th Edition
ISBN: 9780135072950
Author: Thomas L. Floyd, David Buchla
Publisher: Prentice Hall
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 7, Problem 7ST
To determine
The unit of magnetic flux density.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
show thatvthis is a magnetic flux density: then prove and interpret it with reasons on each step
The rate of change of electric flux density is called as
A coil of wire with an average length of 20 cm moves through a magnetic field. The flux is cut with a speed of 7 x 102 m/s. If the generated voltage is 168 volts, what
is the strength of magnetic field?
Chapter 7 Solutions
Electronics Fundamentals: Circuits, Devices & Applications
Ch. 7 - The tesla (T) and the gauss (G) are both units for...Ch. 7 - The unit for measuring magnetomotive force (mmf)...Ch. 7 - Ohm’s law for a magnetic circuit gives the...Ch. 7 - A solenoid is a form of electromagnetic switch...Ch. 7 - A hysteresis curve is a plot of flux density (B)...Ch. 7 - To produce an induced voltage in a coil, the...Ch. 7 - Prob. 7TFQCh. 7 - Prob. 8TFQCh. 7 - Prob. 9TFQCh. 7 - Prob. 10TFQ
Ch. 7 - Prob. 1STCh. 7 - Prob. 2STCh. 7 - Prob. 3STCh. 7 - Prob. 4STCh. 7 - Prob. 5STCh. 7 - Prob. 6STCh. 7 - Prob. 7STCh. 7 - The electromagnetic activation of a movable shaft...Ch. 7 - When there is current through a wire placed in a...Ch. 7 - Prob. 10STCh. 7 - Prob. 11STCh. 7 - Prob. 12STCh. 7 - Prob. 13STCh. 7 - Prob. 14STCh. 7 - Prob. 15STCh. 7 - The cross-sectional area of a magnetic field is...Ch. 7 - In a certain magnetic field the cross-sectional...Ch. 7 - Wha is the flux in a magnetic material when the...Ch. 7 - At a given location, the earth’s magnetic field...Ch. 7 - A very strong permanent magnet has a field of...Ch. 7 - Prob. 6PCh. 7 - What is the relative permeablility of a...Ch. 7 - Determine the reluctance of a material with a...Ch. 7 - What is the magnetomotive force in a 500 turn coil...Ch. 7 - Typically, when a solenoid is activated, is the...Ch. 7 - Prob. 11PCh. 7 - Explain the sequence of events in the circuit of...Ch. 7 - Prob. 13PCh. 7 - What is the magnetizing force in Problem 9 if the...Ch. 7 - How can the flux density in Figure 7-51 be changed...Ch. 7 - In Figure 7-51, determine the following if the...Ch. 7 - Determine from the hysteresis curves in Figure...Ch. 7 - According to Faraday’s law, what happens to the...Ch. 7 - The voltage induced across a certain coil is...Ch. 7 - Prob. 20PCh. 7 - A 20 cm long conductor is moving upward between...Ch. 7 - Prob. 22PCh. 7 - If a generator is 80% efficient and delivers 45 W...Ch. 7 - Prob. 24PCh. 7 - If the output voltage in Problem 24 is 14 V, what...Ch. 7 - Prob. 26PCh. 7 - Prob. 27PCh. 7 - A basic one-loop de generator is rotated at 60...Ch. 7 - Assume that another loop of wire. 90 from the...
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
- Calculate the MMF when the magnetic flux is 5Wb and the reluctance is 3A/Wb. a. 15AT O b. 10N C. 10AT O d. 15Narrow_forwardThe length of a magnetic circuit in a moving iron instrument is 300mm. The coil around the soft iron core has 360 turns and takes a current of 1.75 A. The core is square in section with sides of 20mm. Take the relative permeability of soft iron as 1100. Determine the total fluxarrow_forwardQuestion 9 An air gap is usually inserted in magnetic circuits to Increase the flux None of these Prevent saturation Increase m.m.f.arrow_forward
- Problem 1A core with a coil has 240 turns, to generate a flux ø of 0.008482 weber, how much should the current i1 be and what will its direction be? Relative permeabilities: metal 1 of 250 and metal 2 of 375. Core depth 25cmarrow_forwardA coil of 1000 turns is wound on a core. A current of 1A flowing through the coil creates a core flux of 1mwb. What is the energy stored in the magnetic field.arrow_forwardIf a loop is moving in a varying magnetic field then the voltage generated is: Select one: a. Vemf O b. Vm emf O c. V tr emfarrow_forward
- 1-22. For the figure below, determine the magnetic field intensity in A/m and its direction (into or out of the paper) at point P between the two straight wires. 10A 6mm 4mm 20Aarrow_forwardmagnetic forcearrow_forward15 cm 15 cm for the shown magnetic circuit, find the magnetic flux density, B, everywhere (left arm, middle arm and the right arm). 2 A 20 cm 1A 20 turn 10 turnarrow_forward
- Where specifically do you find the strongest field intensity in magnetic field vs distancearrow_forwardUsing figures (a) and (b), a magnetic flux density of 0.1 Wb in the air gap Determine the current I in the coil with 200 turns required to producearrow_forwardReluctance in a magnetic circuits corresponds to in an electric circuits. Resistance Current O Voltage Chargearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Electricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning
Electricity for Refrigeration, Heating, and Air C...
Mechanical Engineering
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Cengage Learning
The Biot-Savart Law; Author: Jennifer Cash;https://www.youtube.com/watch?v=1BoIH6Quhiw;License: Standard Youtube License