Electricity and Magnetism

Front

What is the unit for resistance?

Back

Ohms

Front

__________ stops the flow of electricity.

Back

An insulator

Front

What voltage is needed to cause a 2amps current flow through a 10Ω resistor?

Back

20V

Front

A particle that carries a negative electric charge is called a(n) ______.

Back

electron

Front

How can the electromagnet be made stronger?

Back

Add more coils of wire to the nail.

Front

What is the unit of electric current?

Back

Amperes

Front

What is the relationship between voltage, current, and resistance?

Back

Ohm's Law: V = I × R

Front

What is a conductor?

Back

A material that allows the flow of electric current.

Front

What is an insulator?

Back

A material that resists the flow of electric current.

Front

What is the formula for calculating power in an electrical circuit?

Back

P = V × I