What is an electromagnet? What are the parts of an electromagnet? How is an electromagnet useful when compared to a permanent magnet?

                                                     Answer(s)

Q1: What is an electromagnet?

A1: According to Microsoft Dictionary, a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.

Q2: What are the parts of an electromagnet?

A2: According to Sciencing, Significance. Electromagnets are a vital part of everyday life.

Operation. Electromagnets behave the same way as regular magnets.

Construction. The basic components of an electromagnet are a wire and a power source.

Special Types of Electromagnets. Solenoids are electromagnets that are in the form of a helix.

Q3: How is an electromagnet useful when compared to a permanent magnet?

A3: According to Toppr, The main advantage of an electromagnet over a permanent magnet is that we can quickly change the magnetic field by controlling the amount of electric current in the winding. The magnetic field created by an electromagnet is proportional to both the number of turns in the winding and the current in the wire.

Hope this helps! <3

answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation:

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.