What Are the Uses and Limitations of Electromagnets?

  • Thread starter Thread starter Bez
  • Start date Start date
  • Tags Tags
    Electromagnet
AI Thread Summary
Electromagnets are coils of wire that generate a magnetic field when an electric current passes through them. They are widely used in applications such as electric motors, generators, and magnetic levitation systems to generate electricity and control mechanical movement. During electromagnetism, the interaction between electric currents and magnetic fields occurs, enabling various technologies. Advantages of electromagnets include their ability to be turned on and off and their adjustable strength, while disadvantages include heat generation and reliance on a power source. Future developments may focus on improving efficiency and miniaturization for advanced applications.
Bez
Messages
14
Reaction score
0
It would be great if someone is able to answer the following question (if possible)
What is electromagnet?
How is electromagnet used to generate electricity?
What happens during electromagnetism?
Advantages and disadvantages of using electromagnets.
Future developments in electromagnetism.
Thanks in advance. :)
 
Physics news on Phys.org
What do you think the answers are to these? What do you feel electromagnetism is from your knowledge through research?
 
does it help in creating electricity?
 
Thread 'Voltmeter readings for this circuit with switches'
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
Thread 'Correct statement about a reservoir with an outlet pipe'
The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...
Back
Top