New answers tagged

4 votes

Is it possible to ignore Nyquist-Shannon theorem?

I was thinking about accumulating data and then doing some maths on this. How would you figure-out which frequency produced the samples (black dots): - Blue is over-sampled and red is under-sampled. ...
user avatar
  • 389k
1 vote
Accepted

Thermionic emission

Are you searching something as this? From this paper ... EE&O ... Here is a Maple sheet for evaluation. Hope this help. NB: kappa and S (area of the emissive device) are "evaluated" ...
user avatar
  • 5,896
0 votes

Reactive power and eletro-mechanical analogy

One of the subjects that constantly helps me form a good analogy in electricity is water or fluid dynamics, a very easy topic to learn and super useful in analogies. I'm writing this without an answer,...
user avatar
  • 143
-1 votes

Can't find error in nodal analysis

Using nodal analysis we have: $$ n_1:\frac{v_1−V}{R_1}+ \frac{v_1}{R_2}+ \frac{v_1-v_2}{R} = 0 \\ n_2:\frac{v_2−V}{R_4}+ \frac{v_2}{R_3}+ \frac{v_2-v_1}{R} = 0 $$ $$ \begin{bmatrix} G_1+G_2+G & -...
user avatar
  • 24
4 votes

Can't find error in nodal analysis

Your equations ignore the current through R. You can't do that. If you don't believe this, think about what happens when R is 0. For example, your node1 is missing the term \$ \frac{+v_2 - v_1}{R}\$ ...
user avatar
7 votes

Can't find error in nodal analysis

I found out the drop voltage at \$R\$ which is -34. But the solutions say it is -28V. I can't find what did wrong. $$\color{red}{\text{Neither answer is correct }}$$ Think about it: How can the ...
user avatar
  • 389k

Top 50 recent answers are included