This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Steel core is used in electromagnets that have AC voltage applied to them because ________. A) ... (Read 29 times)

Ebrown

  • Hero Member
  • *****
  • Posts: 567
on: Jul 27, 2018
Steel core is used in electromagnets that have AC voltage applied to them because ________.
 
  A) laminated steel allows the magnetic field to build and collapse quickly
  B) laminated steel is more economical to use than soft iron
  C) laminated steel is easily formed to any shape, which makes it more usable in complex components

Question 2

What is the advantage of using multiple compressors on a supermarket rack system?
 
  A) The compressors can operate at a higher compression ratio as a parallel group.
  B) Using multiple parallel compressors makes the use of multiple refrigerants possible.
  C) Extra compressors provide backup in case one quits working.
  D) System capacity can match refrigeration loads, which vary over a wide range.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

otokexnaru

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

D


Ebrown

  • Hero Member
  • *****
  • Posts: 567
Reply #2 on: Jul 27, 2018
TY


otokexnaru

  • Sr. Member
  • ****
  • Posts: 314
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Pulse oximetry with the sensor probe applied securely, flush with skin, making sure that both sensor Pulse oximetry with the sensor probe applied securely, flush with skin, making sure that both sensor
An experimentally made Oldowan type core. An experimentally made Oldowan type core.
Checking the voltage drop between the TP sensor ground and a good engine ground with the ignition ... Checking the voltage drop between the TP sensor ground and a good engine ground with the ignition ...
Structure of the nucleosome core particle as revealed by X-ray diffraction Structure of the nucleosome core particle as revealed by X-ray diffraction
Core Concepts in Pharmacology Core Concepts in Pharmacology
For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately
Video: Blood Flow Through the Kidneys

For a complete list of videos, visit our video library