In the above picture we first found the color coding on a 100 Ohm resistor, which was brown-black-brown. On the right side of the board we found the resistance of an 18 gauge copper resistor which we did by first density, finding the area, then finding the length of the coil (by multiplying it by its length on one side, turns, and number of sides). We were then able to plug and chug with the Resistance formula. We then were given the measurements of an inductor and with that we were able to find its inductance. With the inductance and the resistance (150 Ohms, 50 from the frequency generator and 100 from the resistor) we were able to find our time constant.
In this picture we ran an experiment with a given inductor, which had 440 turns of coil. We calculated lengths, area, resistance and inductance theoretically before running the experiment. We then ran 5 volts with a square graph to come up with the graph shown on the oscilloscope. With this we were able to calculate our experimental values for our time constant, inductance, and number of turns. With these values we were also able to calculate the uncertainties with our experiment and the theoretical values we originally calculated.
In this picture we examined Faraday's Law of inductance. We also have the formula for it on the right top corner of the board. We were then given a circuit composed of a power source, 2 resistors and 1 inductor. We first calculated our max currents and then found the current at a specific time (170 ms). At this point we had calculated our time constant by dividing the inductance by the resistance of the circuit. With the time, time constant, and max current we were able to find currents at specific times. We also found the time it would take for there to be 11 volts in the inductor.
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