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Electricity Final Exam

Discuss ohm's law as it relates to resistance in parallel circuits and series circuits.

Ohm's Law is a formula in which one can use to find either current, voltage, and resistance. V=IR, V/I=R, or V/R=I. V is measured in volts, I is measured in Amperes, and R is measured in Ohms. Anyone of these equations can be used to find what you are looking for. When you are trying to find the voltage drop across a resistor, you would use V=IR. Resistors also relate to each other while they are in the circuit. When they are in series in the circuit, the resistance of the circuit is the sum of all of the resistors. R1+R2+R3=RT. When ever the resistors are in parellel with each other, they are inversly related. 1/R1+1/R2+1/R3=1/RT.

What was the most useful thing you learned from this course?

The most useful thing that I have learned from this course is the knowledge of how a speaker works. The first unit in this course was the work with the speaker. I enjoyed this section of the course because I had little knowledge of the speaker and building them from scratch gave me a lot of information that I never had before. I also enjoyed going over the alden school and giving the demo. I enjoyed showing the kids how to explain something that we learned in such a small amount of time.

What was the most surprising thing you learned from this course?

The most surprising thing I learned from this course was the work with the circuit boards. I have never worked with the small circuit boards before. It suprised me that I could teach myself the small components of the circuit boards that I made. Such components are resistor, capacitor, diode, switch, etc. I enjoyed working with the packets making the different kind of circuits, expecially the ones with speakers to make different kinds of noises.