As in the last section of this part of my lab, we have our special guest Dr. Spark. Spark is an electrical engineer, and he will teach us, or at least try to teach us some technical terms in electricity. "Thank you Spark for your time."

"You're welcome"

"Spark, could you tell us about some of those technical terms we need to know."

"Of course I will. Lets start off with the basics. As you might already know, current is the flow of electricity. Much like water flow, the same definitions and logic applies. Current is measured in Amperes, or Amps. This is denoted by the symbol 'A'. Another term you should know is voltage. Voltage is like the pressure you can generate in a stream of water. Voltage measures the amount of 'push' a power source can give electrons. The symbol for Volts is the letter 'V'. A final term that you should know is the term resistance. Resistance is self explanatory, it is the resistively of a material, and it is measured in ohms."

"That was pretty boring Spark, may be you could give us some more cool terms?"

"I'll try. You know electricity isn't very cool, it's very hot! Ha ha, do you get it? Hot, cool? Ah, well, it was pretty funny to me. Anyway, a cool electronic term is the coulomb. A coulomb is measure of electron flow, and it is number so large that you probably couldn't fit it on a chalkboard. Here it is: 6.04 x 10 24. That is a measure of how many electrons pass a single point in one second, when a voltage of 1 V is applied to an object with 1 ohm of resistance, and 1 amp of current flow, or so I've been told."

"Quite interesting."

Once again, we'll get back to our friend Spark in the next section. Spark will tell us about the fascinating world of transistors, and capacitors! So click away to learn more!

Current flows like water

Current is measured in Amperes (A)

Voltage is measured in Volts (V)

Resistance is measured in ohms