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
DerKrebs [107]
3 years ago
10

What is an advantage of using an electromagnet rather than a regular magnet

Physics
2 answers:
Lena [83]3 years ago
5 0
Electromagnet would have a stronger pull than a regular magnet
<span />
SVEN [57.7K]3 years ago
4 0

Answer:

Electromagnets are temporary magnets made by supplying electric current to a soft iron wounded with coils of wire. Once the source of electricity is disconnected, the magnetism dies off.

However electromagnets usually have stronger electric fields than regular magnets, therefore they are often used in lifting large piece of equipment from one point to another, provided that the equipment are magnetic in nature.

Another major advantage of using an electromagnet rather than a regular magnet is that the magnetism of the electromagnet can be terminated when need be by simply disconnecting the source of electricity.

For example in lifting a heavy metal from one point to another if it gets to the point of dropping off the metal there will be a need to terminate the magnetism so that the metal can fall off; a regular magnet can not be used for this purpose.

You might be interested in
A sound wave traveling downward with a speed of about 4,000 m/s suddenly slows to 1,500 m/s not far below the Earth’s surface. W
mezya [45]
<h2>Answer: an underground lake</h2>

Explanation:

In general, sound (mechanical waves) travels faster in solids than in liquids, and faster in liquids than in gases. This is because <u>the speed of the mechanical waves is determined by a relationship between the elastic properties of the medium </u>in which they are propagated and the mass per unit volume of the medium (that is:<u>density</u>).

In other words: The speed of sound varies depending on the medium through which the sound waves travel.

So, if we are told the sound wave initially had a speed of 4,000 m/s and it suddenly decreases to 1,500 m/s, this means the sound waves passed from a solid medium to a liquid medium.

Hence, the correct option is: an underground lake.

8 0
4 years ago
Read 2 more answers
Help please <br><br><br> -spaceholder this is-
4vir4ik [10]

Explanation:

I don't have time for you

4 0
4 years ago
An object of mass 30 kg is in free fall in a vacuum where there is no air resistance. Determine the acceleration of the object.
velikii [3]

Answer:

In free fall, mass is not relevant and there's no air resistance, so the acceleration the object is experimenting will be equal to the gravity exerted. If the object is falling on our planet, the value of gravity is approximately 9.81ms2 .

7 0
3 years ago
Andy and Charlie are riding on a merry go-round. Andy rides on a horse at the outer rim of the circular platform, four times as
mestny [16]

Answer:

4) the same as Charlie's.

Explanation:

They both make one full circuit (2π radians) of the merry go round in the same amount of time, therefore their angular speed is the same

3 0
3 years ago
Explain why the reflection of light off ground glass changes from diffuse to specular if you spill water on it
Basile [38]
Because when you spill water on it, the reflection comes from the surface of the water, not the ground glass.
4 0
3 years ago
Other questions:
  • According to Newton's 2nd law of motion, Jim can throw - with equal amounts of force applied - a _____ farther than a _____.
    9·2 answers
  • SP: Calculate the moment
    15·1 answer
  • The gravitational strength on Earth is less than the gravitational strength on Jupiter. What will happen to a satellite when it
    6·2 answers
  • A proton in a particular electric field experiences an electric force whose magnitude is equal to the weight of the proton. Dete
    8·1 answer
  • 90 points whats the equation for how fast something will be traveling before it hits the ground. How to do the equation PLEASE E
    10·2 answers
  • A tennis ball is traveling at 50 m/s and has a kinetic energy of 75J. Calculate the mass of the tennis ball.
    11·1 answer
  • A woman stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.64
    13·1 answer
  • Wave 1
    15·1 answer
  • Need help with this one question!​
    10·2 answers
  • How much heat energy is needed to raise the temperature of 50g of lead by 4.0°c​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!