Today I tried to finish the remnants of last week's work. I tried to complete the lab reports and finish watching some videos. Sadly, I didn't get very far.
I know the basics of current, voltage and resistance, which is enough to understand the lab report. But there is some things that remain unclear. The video cleared up so much that I think I should go back and look at my lab report again.
In class, I watched the video Voltage Current and Resistance - Bozeman Science. It used the simulation to explain about current, voltage, and resistance. Then, I wrote this post to organize my thoughts.
In last week's post Week 1: Day 1, I wondered why there were some sparks flying when I built a circuit without a resistor. The video cleared that up. Without the resistor, the electrons would basically go fast and out of control.
The relationship between current, voltage, and resistance can be represented by the analogy of a water tank. The tank holder, where the water remains idle, is the voltage. It's the potential energy of the circuit. The voltage is the water that's actually flowing in the pipes. The resistance is whatever slows down the water- which is important because you don't want to the water to flow too fast and break the pipes, so to speak. The resistance could be the twists and turns or the smaller pipes branching off.
After he explained this, he went on to the simulation. That was when he showed what would happen without a resistor in a simple circuit. Then, he showed the way the voltage, resistance, and current are related.
I thought the way he explained it made more sense than anything else. As I said, I will be looking at my lab report again.
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