Recent content by Strides

Hey everyone, I've recently programmed an animated simulation of the main elements (core planets and Sun) of our solar system: by using the initial coordinates from the JPL database, and then calculating the combined gravitational perturbations and the relativistic effects from the Sun...

Hey, I'm trying to adapt the Bragg condition for the David-Germer experiment, so I can then use their experimental results to show that the measured wavelength is compatible to the wavelength theorized by De Broglie. However I'm having issue with the calculation, any help would be much...

Here's the lab guide that I've been using, the question for stray capacitance is at 7.4. I've already found the phase velocity from the length of the transmission line without taking the stray capacitance into consideration.

I mainly just want to know, if the increase in the phase velocity for the given stray capacitance is an acceptable value for the given range of frequency?

I've been specifically told to use the equation above for the serial stray capacitance, so I assume that in this experiment the parallel stray capacitance that you've mentioned must be taken as negligible.

The scope probes are just coaxil cables connected to the oscilloscope, which should be around 50Ω & 90pF per meter. With a length of a couple cm, I assume roughly 2pF per channel? I was hoping to measure any parasitic capacitance which may effect the phase velocity. I was only given the above...

At the moment, all I've got is a simple diagram, I hope that suffices.

Hey everyone, I'm trying to measure the stray capacitance in a circuit comprised of an rf signal generator, an oscilloscope, a coaxial cable (short-circuited) and some capacitors. I measured the resonant frequencies of the coaxil cable for varying values of capacity (0pF to 850pF) between 4MHz...

Hey, thanks for all the help everyone. I've just fitted my data and I've got T = 300K from the gradient of the graph, which matches my theoretical temperature quite nicely. However I'm unsure of what the y-intercept stands for in this scenario, which is around 1000, and how does it fit into my data?

I'm measuring the collector current flowing into the transistor, as a function of the voltage at the base, while ensuring that no current flows through the base. I'm hoping that the temperature of the transistor across my results should be around room temperature (but it's most likely not, due...

Hey everyone, I'm trying to form a straight line plot, using the following equation: $$ I_C = α_F {I}_{EO} [exp(e{V}_{BE} / kT) - 1] + {I}_{CBO} $$ My aim is to find the temperature, T, by plotting a graph using the associated base-emitter voltage, ##{V}_{BE}## and collector current, ##I_C##...

Here's my attached results

Hey everyone, I'm trying to plot a straight line for a bipolar junction transistor to find the room temperature, T, using my experimental results for the associated base-emitter voltage, ##{V}_{BE}## and collector current, ##I_C##. Here's the equation that I'm using: $$ I_C = α_F {I}_{EO}...

Sorry, I just mean that I've converted the error, from absolute to percentage beforehand. I've just edited my original post to fix the mistake.

Hey, I'm trying to propagate my percentage errors through some hefty equations and come up on a bit of snag: I've got a percentage error for x and know how to deal with it for trig functions and powers, however since both errors are from the same source: y = sin(x)^2 / x^2 Should I just...