Difference between Electromagnets and Permanent Magnets
Trending Questions
Q.
State two advantages of an electromagnet over a permanent magnet.
Q. An electromagnet is a temporary magnet made by winding a coil of wire around a piece of soft iron.
- False
- True
Q.
State two differences between an electromagnet and a permanent magnet.
Q.
Which of the following statements about an electromagnet is NOT true?
It is a permanent magnet.
It works only in the presence of electricity.
Insulated wire is wound around it.
It is used in fans and radio.
Q.
How can you increase the strength of an electromagnet?
Q.
State two advantages of an electromagnet over a permanent magnet.
