Electricity and Magnetism

Front

What does the Right Hand Rule state?

Back

If you hold a wire in your right hand and point your thumb in the direction of the positive current, the direction that your fingers curl is the direction of the magnetic field.

Front

What is an electromagnet?

Back

A device that generates a magnetic field when an electric current passes through it, and can be turned on and off.

Front

How do electromagnets differ from regular magnets?

Back

Electromagnets can be switched off and on, while regular magnets have a constant magnetic field.

Front

What materials are needed to build an electromagnet?

Back

Battery, Wire, Nail.

Front

Name three magnetic metals.

Back

Iron, Nickel, Cobalt.

Front

What is the role of a battery in an electromagnet?

Back

The battery provides the electric current needed to create the magnetic field.

Front

What is a solenoid?

Back

A coil of wire that generates a magnetic field when an electric current passes through it.

Front

What is the principle behind electric motors?

Back

Electric motors convert electrical energy into mechanical energy using magnetic fields.

Front

What is the function of a generator?

Back

A generator converts mechanical energy into electrical energy.

Front

What is magnetic field strength?

Back

Magnetic field strength is a measure of the intensity of the magnetic field, often represented by the symbol 'B'.