Electromagnets

Front

What device is the diagram below representing?

Back

Electromagnet

Front

Which of the following answers the best completes this hypothesis about electromagnets?

Back

A.  IF the wire is coiled more times around the nail, THEN the strength of the electromagnet will increase

Front

In an electromagnet, a current is passed through loops of wire that surround a core. Which material would be best to use as the core of an electromagnet?

Back

A steel screw

Front

Which objects could you combine to build an electromagnet?

Back

Copper wire, source of electric current, steel screw

Front

Which action increases the strength of the magnetic field around an electromagnet?

Back

Increase the number of coils of the wire around the iron core

Front

How can a nail become magnetized in an electromagnet?

Back

The electricity running through the wire produces a magnetic field and magnetizes the iron.