Electricity and Magnetism

Front

What happens to the current in a series circuit if you increase the number of lightbulbs?

Back

The current goes down because the total resistance increases.

Front

What is the negatively charged particle in an atom?

Back

Electron.

Front

How can you increase the strength of an electromagnet?

Back

By increasing the current, adding iron to the core, and increasing the number of coils on the magnet.

Front

What do positive electric charges do?

Back

They repel positive charges and attract negative charges.

Front

What is the motion of electrons called?

Back

Current.

Front

What is the unit of electric current?

Back

Ampere (amps).

Front

What is the relationship between voltage, current, and resistance in a circuit?

Back

Ohm's Law: V = I × R (Voltage = Current × Resistance).

Front

What is a series circuit?

Back

A circuit where components are connected end-to-end, so the current flows through each component.

Front

What is a parallel circuit?

Back

A circuit where components are connected across common points, allowing multiple paths for current.

Front

What is an electromagnet?

Back

A magnet created by electric current flowing through a coil of wire.