T3L3 Flashcard

Front

How does an electromagnet work?

Back

A current flows through a wire wrapped around a metal core, creating a magnetic field.

Front

What is the role of a battery in an electromagnet?

Back

It supplies the electric current needed to produce a magnetic field.

Front

How can the strength of an electromagnet be increased?

Back

Add more loops of wire around the core.

Front

What tool can help determine the direction of a magnetic field?

Back

A compass

Front

What happens when you add more loops of wire to an electromagnet?

Back

The magnetic field becomes stronger.

Front

What material is typically used as the core of an electromagnet?

Back

Iron

Front

What weakens an electromagnet?

Back

Use less wire around the core.

Front

What happens to the magnetic field when the electric current is increased?

Back

It gets stronger.

Front

How does a magnetic field behave around a wire loop?

Back

It forms circular patterns around the wire.

Front

What happens if you remove the battery from an electromagnet?

Back

The magnetic field disappears.