1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Flura [38]
3 years ago
8

. It is essential for a relay energized by alternating current to have A. many turns of small wire. B. a laminated core and a sh

ading coil. C. high resistance and light weight. D. double-pole double-throw contacts.
Computers and Technology
1 answer:
Tomtit [17]3 years ago
6 0
The correct answer is B, a laminated core and a shading coil.

A key difference in an AC relay is the presence of a "shading coil". The purpose of this coil is to keep the relay on when the current drops to zero during phase change (note that in AC power the current and voltage are alternating in a sine wave around 50/60 times per second). The shading coil retains some magnetic energy and essentially holds the relay ON when the current drops to zero momentarily due to the AC waveform.

AC relays also have a laminated core to prevent losses due to eddy current heating.
You might be interested in
Which is a value of the Scrum Manifesto?
erma4kov [3.2K]

Answer: I think the answer is a. working software over comprehensive documentation

Explanation: Agile Manifesto is a brief document built on 4 values and 12 principles for agile software development. The Agile Manifesto was published in February 2001 and is the work of 17 software development practitioners who observed the increasing need for an alternative to documentation-driven and heavyweight software development processes.

7 0
3 years ago
What underlying concept is edge computing based on?
guajiro [1.7K]

Answer:

Edge computing was developed due to the exponential growth of IoT devices, which connect to the internet for either receiving information from the cloud or delivering data back to the cloud. And many IoT devices generate enormous amounts of data during the course of their operations.

Explanation:

8 0
2 years ago
Read 2 more answers
The process of converting information from a form/questionnaire is referred to as data preparation. This process follows a four-
Sergio [31]

Answer:

Data tabulation.

Explanation:

6 0
3 years ago
Some students are studying the amount of pollution in a river They are using a computer to measure the pollution level using sen
Tpy6a [65]

Answer:

optical sensors

Explanation:

optical sensors measure the amount of gases like carbon dioxide and carbon monoxide in the air

4 0
2 years ago
Which type of electronic payment is typically favored in b2b?
Dennis_Churaev [7]
Electronic checks would<span> typically be favored in b2b</span>
4 0
3 years ago
Other questions:
  • What is the part of the browser window that displays the content of the web page such as pictures and text called?
    10·1 answer
  • HELP ME PLZ QUICK Adam is writing a program that: 1) has the user guess a number, and 2) tells the user how many guesses it took
    11·1 answer
  • What does it mean by MYRIAD of data?
    9·1 answer
  • What is project management? A. Brainstorming ways to plan a project B. Executing, completing, and revising a project C. Managing
    10·1 answer
  • What does IDLE stand for
    11·2 answers
  • Write a program to find area of rectangle​
    12·1 answer
  • Need answer Asap!!!! Which file type is the best choice if the image will be made into a billboard?
    12·1 answer
  • What is a for command? can u use a variable instead of a number in the for command!<br>​
    14·1 answer
  • What is required to publish documents on the Web
    12·1 answer
  • How does Virtual Reality help to make work experiences more inclusive?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!