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
Aleksandr-060686 [28]
3 years ago
15

What are the materials necessary to create an electromagnet?

Physics
2 answers:
klemol [59]3 years ago
6 0

Answer:

A

Explanation:

Electromagnet: It is a temporary magnet. It consists of wrapping coils around iron core and the power source. When the current passes through the coils around the iron core then it will get magnetized. The domains of the electromagnet gets aligned.

As long as the current passes through it, it will get magnetized. It will loose its magnetism easily when the power is switched off.

In the electromagnet, the strength of the magnetism can be increased or decreased. The poles of the electromagnet are not fixed.

larisa86 [58]3 years ago
6 0
I think answer is b. Please give me brainlest I hope this helps let me know if it’s correct or not thanks I appreciate it
You might be interested in
Two golf balls are thrown with the same speed off the top of a large bridge at the same time. ball a is thrown straight downward
iren2701 [21]
I think that ball  a hit the ground because it says that it went straight down.
8 0
4 years ago
A popular classroom demonstration is to place a gas can on a burner and boil water in it. Left unchecked this has the potential
marysya [2.9K]

Answer:

D) shrivel up, since the atmosphere exerts more force on the can as it cools.

Explanation:

As the water in the can is boiled the can gets heated up and contains hot vapour and gases which are rare in density and are in their expanded state. In this state when the can is sealed tightly such that no air leaks in or out of the can. When the temperature of the can drops, the gases shrink in volume and the pressure inside the can become less than the pressure of the atmosphere which leads to shriveling of the can.

5 0
3 years ago
How can resistance be useful and where can they be useful?
sergiy2304 [10]
-- Resistance can be useful among the population of a repressive government.
Although it can be dangerous for those who resist, it can also exert pressure
against the regime to alter its repressive practices.

-- Resistance can also be useful in electronic circuits. "Lumped" components with
known numerical values of resistance are used to divide voltage, limit current, and
dissipate controlled amounts of electrical energy. 
3 0
3 years ago
Question 9:<br> All parts thank you !
WINSTONCH [101]
Photo Math is the answer
5 0
4 years ago
What is amplitude?
nydimaria [60]
1. Frequency  is the number of complete waves that pass a point in a second.   2.Wavelength is the distance between two crests or two troughs.                     3.Time period <span> is the time it takes for one complete wave to pass a given point. 4. Amplitude is the height of the wave.   Hence option 4 is correct. </span>
8 0
3 years ago
Other questions:
  • Emily holds a banana of mass m over the edge of a bridge of height h. She drops the banana and it falls to the river below. What
    9·1 answer
  • A bicyclist on an old bike (combined mass: 92 kg) is rolling down (no pedaling or braking) a hill of height 120 m. Over the cour
    6·2 answers
  • Give five difference between manometer and barometer​
    8·1 answer
  • A glass object receives a positive charge of +3 nC by rubbing it with a silk cloth. In the rubbing process have protons been add
    14·1 answer
  • What is the velocity of a 50kg skater if her momentum is 225kg. m/s?
    5·2 answers
  • Please Help Quick ASAP Hurry This is Physical Science
    15·1 answer
  • Hi..I'm new here..Can some one help mi with my school work plz​
    14·1 answer
  • A boat is rowed perpendicular to the shore of a river that flows at 3.0 m/s as shown in the
    15·1 answer
  • FIRST TO ANSWER CORRECTLY GETS BRAIBLIEST!!
    8·1 answer
  • Jonathan and Cody’s older brother Josh, who is pictured in the Figure below, is standing at the top of a half-pipe at Newton’s S
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!