"A is for Ampere" - Circuit Playground Episode 1

"A is for Ampere" - Circuit Playground Episode 1! Learn all about electronics with Ladyada, ADABOT and special guests!

Ampere describes the number of electrons that flow through a circuit in one second. It is named after Andre-Marie Ampere. Learn more: http://www.adafruit.com/coloringbook

Credits:
Ladyada - Limor Fried

Andre-Marie Ampere - Collin Cunningham

ADABOT - Collin Cunningham & Phil Torrone, Puppet by Anney Fresh, design by Bruce Yan

Music: Tom White & Collin Cunningham

Intro animation - Bruce Yan

Written, filmed, edited, directed and produced by - Collin Cunningham, Limor Fried, Phil Torrone and the Adafruit team

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Adabot

Billy

Connie

Ruby

Flo

Gus

Cappy

Circuit Playground

(music)

(toaster oven door closing)

(electronic music)

(hair dryer blowing)

(silence)

Uh-oh...

Did I break something?

Looks like you tripped the circuit breaker, Adabot.

Wait. Who did I trip?

No, no. The circuit breaker isn't a person.

It's a device in that box over there.

The circuit breaker turns off all the electricity

when we draw too much electrical current.

Ohhh!

And it's also something only a grown-up should touch.

Added to memory, Wow! Powering all my stuff

must use a lot of current.

That's right. And we measure electrical current in amperes.

Huh! Why do we call it that?

The ampere is named after the scientist

Mr. André-Marie Ampère.

Accessing database.

(electrical beeping)

André-Marie Ampère, a French scientist from the 1800's.

That's right. And Mr. Ampère was very curious

about how electricity works.

Curious, like me?

This is true.

And he conducted many experiments

to learn about electricity.

(music)

The result of these experiments showed Mr. Ampère that

electricity is created by the movement of many teeny objects

which are so small we can't even see them.

Electrodynamic molecules?

Nowadays we call these teeny objects "electrons".

And when electrons move, we call that electrical current.

Makes sense to me.

Oh. Now I get it, Ladyada.

But, how do we measure amperes?

That's easy. We use a multimeter.

Oh! I wish I had one of those!

In this circuit, electrons flow from one end of the

battery through the LED and then back to the other

end of the battery.

By setting the current through a multimeter,

we're able to measure the amount of electrons

flowing through.

So this LED is using...?

0.05 amperes.

Correct.

I wish I could see electrons move.

Well, you may not be able to see every single electron,

but you can see the effects of electrical current.

Really? How do we do that?

Well, you can see it when your boom box makes sound.

Or when your toaster heats up.

And you can feel it when your blow drier

blows hot air at you.

I get it. Electrical current makes electricity go!

Those electrons are amazing!

That's right, Adabot.

Hey, you know you don't have any hair, right?

What?

Zut alors!

(music)