Recent content by Vaclav

Unfortunately, this does not help me. My book does have the formulae for the example, but they find it using the Biot-Savart method and they want me to compare it by using a different method it seems. My professor as well indicated that I should use the formula I listed above, but I am not sure...

I am trying to calculate the vector magnetic potential for a rod of length L extending along the Z-axis. I was asked to find the magnetic potential at a point P which is a distance r from the center of the rod in the XY plane. I know the formula I have to use is the vector Poisson's equation A...

Oh, he did state that we had to adjust the wave generator and oscilloscope so that the pattern would not be moving up and down, I guess he just didn't say what caused it. Okay, interestingly enough all of our data agrees with the theoretical curves if we simply subtract 6 nF from the equivalent...

Which part of the charging/discharging pattern are you talking about, the beginning of the discharge pattern? What do you mean by DC offset and how do I check it through my data? The instructor did not mention any zero voltage line so we only focused on adjusting the height and length of the...

So it is possible that resistors are acting like capacitors as well? I haven't been able to find a range for what type of capacitance resistors of 98 kΩ would carry, but would it be safe to assume that whatever capacitance they contribute that it would be in series with the equivalent...

I did check the data points (t, V) that we estimated from the curve (we took a slow motion of the pattern) by changing the value for V by an amount that would seem to be the maximum deviation we are off by. It allowed me to adjust the curve somewhat and it did help (I was able to decrease the...

Homework Statement Hello, In a lab experiment, we wanted to compare the time constant in a simple RC circuit by comparing the value of Resistance * Capacitance that we measure directly and the value of RC that we get from the procedure. The procedure entailed using a wave generator and an...

My mistake about the units for current. Are you saying then that the resistance for a sheet that is a fraction of the original width (assuming the length and thickness of the paper are unchanged) would be a fraction of 5000 Ω? If our new strips were ~2 cm wide, then our sheet is about 8.7% of...

0.195 Ω^-1 m^-1 is the value conductivity. I did not do units correctly. "Per square" as I understand it is 1 square of the material that is one slice along the dimension of the thickness. A picture can be seen in the Wiki link as to what the square is, but in words it is the square that the...

Homework Statement After performing a lab experiment to determine the conductivity if Pasco conductivity paper, I found the conductivity to be 0.195 Ωm. We found conductivity by graphing measured values of voltage (y axis) and the length (x axis) between the probes of a voltmeter that are...