Recent content by WK95

How do I relate Fourier's Law of Heat Conduction for 1-D Heat Conduction with the Heat Conduction Equation in a large plane wall and energy balance equation? Fourier Energy Balance energy in - energy out = system energy change rate of energy in - rate of energy out = rate of system energy...

So if R3 and R4 is 10000 Ohms, and V1 is 1.8 and V2 is 3.3, I get 12.8%. Have I done things correctly?

So partial derivatives? Finally! I get to use Calculus III stuff!

You can assume that V1 and V2 are fixed. And yes, I can take derivatives.

Homework Statement Ok, so suppose I have an equation like V_out = 0.5(1 + R4/R3)(V1+V2) and I know the R3 and R4 has a tolerance of +-5%. For such an equation and similar ones, how would I estimate the possible range of values V_out? For example, I'd like to find out something like...

Homework Statement For f(x,y) = (2x - y^2)/(2x^2 + y), what is the limit as (x,y)->(0,0)? Homework EquationsThe Attempt at a Solution From this image, it seems that the limit would be non-existent since on one side of the sheet, it goes up and up to infinity whereas from the other side, it...

Homework Statement For a generic function y=f(x) which is twice-differentiaable, is it possible for there to be a curvature on the curve of that function that is greater than the curvature at its relative extremum?Homework Equations The Attempt at a Solution From visualization and a sketch...

Thanks! That's just what I need. I've ended up with R=sqrt((a^2 + 1)e^(2ax)) so K=1/sqrt((a^2 + 1)e^(2ax)). Taking the limit as a approaches infinity I get 0 and taking the limit as x approaches infinity, I also get 0.

Yes, but then I'd end up with a 0 in the denominator in the third equation which wouldn't work. However, that would require me to find a work around and solve for the limit some other way so I don't get 0/0. I haven't been able to figure out what I have to do to get around that. I am expecting...

I'm getting 0 for the limit of x', x'', y', y'' as a approaches infinity and when theta approaches infinity.

Homework Statement Given the polar curve r=e^(a*theta), a>0, find the curvature K and determine the limit of K as (a) theta approaches infinity and (b) as a approaches infinity. Homework Equations x=r*cos(theta) y=r*sin(theta) K=|x'y''-y'x''|/[(x')^2 + (y')^2]^(3/2) The Attempt at a Solution...

Simple. Since I didn't know anything about what was in Ch. 1, I simply had to find it out. You can as well if you were to make the circuit as shown in the initial post.

Yes, my apologies. I've neglected to include the relevant oscilloscope readout. Vertical Scale: 100mV/DIV Horizontal Scale: 50 microsecond/DIV Here is a the function generator used. Notice the AMPL knob to the right. Maximum amplitude means turning it all the way counterclockwise.

bump

For question 1, I got the inductance to be 0.114 mH.