Measuring Inductance
In the above seen experiment we connected an inductor (internal resistance of 1.2Ω), function generator(internal resistance of 50Ω), and a 150Ω resistor in series. We also connected the circuit to the oscilloscope to see the output.
The above picture shows the outcome of the circuit. It was fed a square wave at a frequency of 2kHz and 10 Volts.
Using the above image we determine t1/2 for the exponential decay which turned out to be about 10µs. We then used the half time to determine the value of the time constant, TL. We then plugged this value into out formula for inductance and found the experimental value of inductance (pictured below).
In addition to finding the experimental inductance (2.89mH) we also calculated the theoretical inductance for our inductor based on the area of the cross section and its length. After plugging in those values for the inductance formula we discovered that the theoretical inductance should have been about 1.61mH which is about half of experimental value. In order to double check the numbers Prof. Mason measured the inductance and found it to be 1.65mH.
ActivPhysics: Electromagnetic Induction
At the beginning of class we did an ActivPhysics assignment in which we tested our knowledge on the concept of inductance. Given different scenarios we were asked to determine what would happen to the flux and magnetic fields.
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