In the previous pod,
we learned the main formula for
an electric circuit: Ohm's Law \( V = IR \).
In this pod, we will learn a second crucial formula
for comprehending electric circuits: The power Formula \(P = IV \).
$$
P = I V
$$

I have a current of 5 Amps and I have a 12 Volt battery. What is my power?

I have a current of 3 Amps and a 30 Volt battery. What is my power?

I have a 100 Watt light bulb hooked up to an outlet, which means it has 120 Volts. What is its current?

My vacuum cleaner uses 1100 Watts, and I hook it up to an outlet, which means it has 120 Volts. What is its current?

I have a 300Watt device, and I know there is 2 Amps of current going through it. How much voltage does it have?

I hook up a 4volt battery, and it produces a current of 0.3 Amps through my light bulb. How much power does the light bulb have?

I hook up two 4volt batteries, and it produces a current of 0.6 Amps through my light bulb. How much power does my light bulb have?
Answers: