Engineering 44 Carlos Munoz aka Swaggy C: Day 3 (Dusk-to-Dawn lab)

The day started with hot dogs but unfortunately, and I mean REALLY unfortunately, the hot dogs were going to be used for a demonstration and not for eating. A series of LED lights were going to be stuck into the hot dog and a voltage was going to be applied to the hot dog from one long end to the other long end. The class was asked what would happen to the hot dog and what would happen to the lights. Here is our prediction for the cooking of the hot dog and what would happen to the different lights.

Our prediction was incorrect and the actual results were as follows.

We ain't even get a bite :(

Students were asked to find the current and voltage on a resistor in a specific circuit that had a dependent source. Our group came to the answer of 6 amps of current and 24 volts.

The same was asked of a second circuit that also contained a dependent source. The answers this time were 4 amps and 8 volts.

Then we were asked to calculate the voltage at a certain outlet on a circuit that had two resistors in series with a voltage supply. We were asked to find resistors that would give out a certain voltage at that outlet. Our values for the resistors were 1500 and 560 ohms respectively.

After we were asked to find the equivalent resistance of a network of resistors that were in terms of R. Our group found that the equivalence was just R (perfect troll moment).

Finally we moved onto the Dusk-to-Dawn Light lab. It was a follow up on dependent sources and using them to make a light that was turned on when its sensor was in the dark. In this lab the BJT was used as a control for current flow to the LED light. When the photocell is exposed to light it drops its resistance and voltage consumption and not as much voltage goes to the BJT but when it is in the dark it raises its resistance and voltage consumption which allows more current to flow to the LED light. Our pre-lab shows how circuit analysis supports this claim.