7. The flux density in the 0.2in. air gap of an electric motor is 42,000 maxwells...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
7. The flux density in the 0.2in. air gap of an electric motor is 42,000 maxwells per sq in. If the mmf required to produce this flux density is 82 percent of the total mmf developed by the exciting coll (18 percent is needed for the iron portions of the magnetic circuit), calculate the number of turns in the windings, assuming a current of 2.2 amp. 7. The flux density in the 0.2in. air gap of an electric motor is 42,000 maxwells per sq in. If the mmf required to produce this flux density is 82 percent of the total mmf developed by the exciting coll (18 percent is needed for the iron portions of the magnetic circuit), calculate the number of turns in the windings, assuming a current of 2.2 amp.
Expert Answer:
Answer rating: 100% (QA)
Airgap flux density Bag 42000 Mxinch 2 42000 10 8 Wb 000064516 m 2 0651 T Airgap length l a... View the full answer
Related Book For
Posted Date:
Students also viewed these electrical engineering questions
-
An electric motor is rated at 10 horsepower (HP) and costs $1,200. Its full-load efficiency is specified to be 85%. A newly designed high-efficiency motor of the same size has an efficiency of 90%,...
-
The rotor of an electric motor has rotational inertia Im = 2.0 x 10 3 kg m2 about its central axis. The motor is used to change the orientation of the space probe in which it is mounted. The motor...
-
An electric motor is rated at 10 horsepower (HP) and costs $800. Its full-load efficiency is specified to be 85%. A newly designed, high-efficiency motor of the same size has an efficiency of 90%,...
-
What is the output of the following application? A. Painting: 00FF00 B. One line of code does not compile. C. Two lines of code do not compile. D. Three lines of code do not compile. E. The code...
-
Complete and balance the combustion equation for cyclopropanol, C3H6O.
-
In generalized coordinates, obtain the Navier-Stokes equations for the thin shear layercase in terms of the contravariant velocity components.
-
Which of the following does not relate to spark ignition engine? (a) ignition coil (b) spark plug (c) distributor (d) fuel injector
-
You own a copper mine. The price of copper is currently $1.50 per pound. The mine produces 1 million pounds of copper per year and costs $2 million per year to operate. It has enough copper to...
-
Project: Parole: Are We Better Off Without It? As you learned in this lesson, federal parole was eliminated in 1984. This made a dramatic impact on the incarceration system in the United States....
-
Record the following transactions in General Ledger accounts of the General Fund of Fergieville. 1. Incurred salaries of $300,000, $280,000 of which was paid. 2. A long-term note ($400,000 face...
-
The Blue Egg Company is considering starting two Independent Projects. The Treasurer uses the Payback Period method and a 5-year cut-off decision point for evaluating projects. The Company projects...
-
A risk of using credit cards to finance business activities for a sole proprietor is that a default could ruin the owners personal credit. True or False
-
List the major advantages and disadvantages of closed-loop control systems with respect to open-loop systems.
-
The mission statement is a description of an organizations a. financial health. b. current purpose, basic goals, and philosophies. c. philanthropy goals. d. tactical plan.
-
Factoring can be a good source of cash by selling accounts receivable. True or False
-
In Figure 7.5 on page 150, suppose the price of movies increases from $3 to $6. The increase in price shifts the benefit curve (marginal utility per dollar) for movies ________ (upward/downward). For...
-
r3 uestion 19 of 52 < > Office Expense 4,100 $28,617 $26,827 F1 10: An examination of the ledger shows these errors. -/1.92 1. Cash received from a customer on account was recorded (both debit and...
-
The May 2014 revenue and cost information for Houston Outfitters, Inc. follow: Sales Revenue (at standard).............. $ 540,000 Cost of Goods Sold (at standard) ..........341,000 Direct Materials...
-
A cylindrical storage tank has a radius of 1.22 m. When filled to a height of 3.71 m, it holds 14 300 kg of a liquid industrial solvent. What is the density of the solvent?
-
An unstable high-energy particle is created in the laboratory, and it moves at a speed of 0.990c. Relative to a stationary reference frame fixed to the laboratory, the particle travels a distance of...
-
A car is parked 20.0 m directly south of a railroad crossing. A train is approaching the crossing from the west, headed directly east at a speed of 55.0 m/s. The train sounds a short blast of its...
-
Determine the static deflections in each of the springs in the system of Figure P2.22. 40 cm 20 cm 1 x 105 N/m 2 x 105 N/m FIGURE P 2.22 4 kg
-
A \(30 \mathrm{~kg}\) compressor sits on four springs, each of stiffness \(1 \times 10^{4} \mathrm{~N} / \mathrm{m}\). What is the static deflection of each spring.
-
The propeller of a ship is a tapered circular cylinder, as shown in Figure P2.24. When installed in the ship, one end of the propeller is constrained from longitudinal motion relative to the ship...
Study smarter with the SolutionInn App