Recent content by bsr25

A square wave generator was connected to a diode and resistor that were in series. Leads going to an oscilloscope were placed over the diode to measure that voltage drop. Leads were than placed over both the diode and resistor to get the voltage of the source. The oscilloscope measured both peak...

Oh right so I just looked at my data, and the currents we calculated were within the range: 0.08 mA to 14 mA. And the diode is just at room temperature.

Yeah. This is my problem too. I expected the q value we got to at least be on the order of magnitude of the elementery charge. And from research I had done, expected I0 to be less. However, the lab manual states: "Finally, if all goes well your value for the electron charge, q, will probabbly...

We have been looking at P-N junction diodes in our lab session this week and investigating the current through the circuit and how this relates to the Voltage. We are using the approximation: I = (I0)*exp(qV/kT) We measured the voltage and the current for a few different voltages and this...

Sweet. Many thanks for your help! My next query would be as to what q is exactly. For example in a mass on a spring, the equation of motion is d2x/dt2 + ω2x = 0 and x is the displacement of the mass. Is q the charge across the inductor or one fo the capcitors or ... ?

So if isntead I said: L(d2q/dt2) + q/C + q/C = 0 (d2q/dt2) + q*(2/LC) = 0 ω2 = 2/LC Would that be correct?

Homework Statement The figure opposite shows a free oscillator composed of an LC circuit. Derive an expression for the resonance frequency. Show all of your working. Homework Equations d2x/dt2 + ω2x = 0 The Attempt at a Solution First I tried using Kirchoffs Voltage Law to set...