# Recent content by celect

1. ### Nodal voltages

Thanks its coming together now. so my current = 20/9.93 = 2A I don't understand how to get degrees yet \phi = tan^{-1}\frac{y}{x} do I take 8.3/5,5 tan and then use above formula? what is the -1 how do i use on calculator?
2. ### Nodal voltages

Here is a problem I got wrong, with the solution. I don't understand how they got answer. I don understand how you get 5.6 + j8.2 as 9.93 <55.67 how does 5.6 become 9.33 and j.2 = 55.67
3. ### Nodal voltages

I'm confused on how to get proper result I have now I = 20V <20 degree/ 5.6+J8.2 and I found in book the way to draw circuit. but I don't understand how to use the equation with cos and j 20 sin.
4. ### Nodal voltages

So if I need to find E/Z = 20/9.9 = 2A Now all I do is redraw circuit with 2A current source with impedance parallel in circuit?
5. ### Nodal voltages

Ok I'm reading that chapter now, I attached a sample I'm working on now.
6. ### Nodal voltages

Yea I was there today, will be back tomorrow.
7. ### Nodal voltages

Can someone direct me to a tutorial for solving network nodal voltages. Also need to learn how to convert voltage source to a current source.
8. ### Frequency Equation

Ok, I'm checking myself with text that has answers in back for just odd numbers. the only answer they give is 2500/pi Hz but the true answer is to go another step and divide the 2500 by pi. ok thanks.
9. ### Frequency Equation

So are you stating I should have as an answer 5000/2 pi the freq = 2500 pi Hz
10. ### Frequency Equation

So my freq = 5000Hz and my Amplitude = 50V.
11. ### Frequency Equation

I’m really struggling here, if A = 50 and wt = 5000 If I want to know freq should I take the sin of 50(0.7666) and then multiply that by 5000 I have 10 problems I need to lean how to use this equation.
12. ### Frequency Equation

Vs = A*sin({\omega}t + {\phi})+C this formula states Vs = Using the information I'm given 50 * sin(wt + 0) + C is that the sin of 5000t I'm confused on this I never used this type of equation before.
13. ### 2KVA transformer how do I determine the max. safe primary current.

If I have 2KVA transformer how do I determine the max. safe primary current.
14. ### Frequency Equation

Then do I take the sin of 50 then times that by 1/5000t?
15. ### Frequency Equation

If I'm given v=50 sin(5000t) how do I determine the frequency or amplitude? Can someone direct me to a source? thank you