Physics
Physics, 10.08.2021 05:00, carrietaylor234

As you have learned, an electromagnet is a magnet that is produced by electric current. Think about how electromagnets are used and what you have seen or heard of them being used for. In your initial discussion post, respond to the following: Which of the principles or laws discussed in this module explain how an electromagnet works? Describe in detail two modern applications of electromagnets.
Do these electromagnets draw a large amount of current or a little?
How do you know?
What supplies that current?
Why do you think electromagnets are used in these different ways?
What is the advantage of using an electromagnet rather than a permanent magnet?

answer
Answers: 3

Other questions on the subject: Physics

image
Physics, 22.06.2019 09:30, quay84
For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap
Answers: 1
image
Physics, 22.06.2019 14:30, gus2006santos
Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.
Answers: 2
image
Physics, 22.06.2019 20:00, dee6991
Abumper car with a mass of 250 kg is traveling at a speed of 4 m/s. this bumper car collides and sticks to a second bumper car with a mass of 250 kg, which is initially at rest. what is the final speed of these two bumper cars after the collision, assuming they remain stuck together?
Answers: 1
image
Physics, 22.06.2019 23:00, brooke0713
As seen in a us weather map, the h (or high) and l (or low) symbols indicate regions where surface air pressures are high or low, respectively, compared to surrounding areas. an h is plotted where the air pressure is highest and an l is plotted where the air pressure is lowest. proceeding outward and away from the center of a high pressure system, the air pressure "
Answers: 1
Do you know the correct answer?
As you have learned, an electromagnet is a magnet that is produced by electric current. Think about...

Questions in other subjects: