All the Right Hand Rules

Wow, I really feel like blogging today. So this post is about the three Right Hand Rules~


This is Kittie. Isn't he cute?
You will have to curl your fingers like he does for the first 2 RHRs.

RHR #1: The thumb points to the direction of the CURRENT flow, and curling your fingers like a kittie shows the direction of the magnetic field. This rule is used for conventional flow.


RHR #2: The thumb points to North, and the kittie thing shows the direction of the current flow. This rule is used for coils.



RHR #3: The thumb points to the direction of the current flow, the straight fingers point to the field likes, and the palm points to the direction of the "Force".

Concept Map + 10 Things About Electricity you Need to Know

Isn't this beautiful?

So 10 things about Electricity:
1. Difference between conventional current and electron flow
2. Ohm's Law
3. How to calculate Volts
4. How to calculate Amperes
5. The meaning of "Coulombs"
6. The different formulas for Power
7. The difference between Series and Parallel circuits
8. Kirchoff's Laws
9. The units used to measure Current, Voltage, and Resistance
10. How to solve complex circuits

Ohm vs. Kirchoff

I forgot the password to my old Blogger/GMail account, so I made a new one :D

So we learned about Ohm's Law, which describes the relationship between current (I), voltage (V), and resistance (R).
It states that  R=V/I, I=V/R, or V=IxR.
BlogThis!

Favorite Rollercoaster

That's just amazing.
I like the Alice in Wonderland one too, but I can't find a picture of it.

From Battery to Circuit

Today we learned how to use voltmeters and ammeters. Ammeters measures the current (Charge in coulombs/seconds). The amount of electrons passing through 1 point in a DC (direct current) in a period of time will equal the amount of electrons passing through any other point in the circuit within the same amount of time.The voltmeter measures volts, or the electric potential difference (energy required/charge in coulumbs).


How electrons flow from battery to circuit.

Energy Ball Experiment

On Friday, we experimented with an energy ball.

I guess it's a really interesting way to start the semester. We were put in groups and given a little white ping pong ball. We made the ball light up and buzz by using our fingers as wires, and completing the circuit. We had to answer a bunch of questions. They were all pretty easy, except the one asking why the energy doesn't work on certain people. I think the reason has to do with the fact that some people have dry, insulator skin, but I'm not sure.

At the end of class, we had to work together to make a parallel circuit with two energy balls. We succeeded.