# Search results for query: *

1. ### Magnetic field intensity problem

^ Thanks tiny-tim i got it ! :)
2. ### Magnetic field intensity problem

Hi everyone here, hope you enjoying this summer .. i'm taking ' elements of electromagnetic ' course this summer session and i just have a little question here [Broken] in the yellow shaded statement shouldn't it be dl = (l/N) dz instead of dl=(N/l) dz ? By the way, it's not a...
3. ### Calculate the area of the circle

^ yes, they are length of line segments.
4. ### Calculate the area of the circle

i tried hard to solve this question but i got a complicated answer any hint ? http://www.gulfup.net/uploads/13634557771.gif thanks
5. ### Pspice _ netlist not created

i have a problem in PSPICE i created a simple circuit but after clicking on ' simulate ' , a message appears : http://imageshack.us/a/img585/7118/erroru.gif [Broken] any help ? thanks
6. ### Magnitude and phase angle of the resistor voltage

the question is to find the magnitude and phase angle of the resistor voltage in the circuit below : http://img513.imageshack.us/img513/1035/ee204.jpg [Broken] i want you guy's to check my solution please . thanks .
7. ### Engineering An op amp circuit simulation

i got it ! thanks :)
8. ### Engineering An op amp circuit simulation

any help ? thanks
9. ### Engineering An op amp circuit simulation

=> Vn = 29/30 v and Vo = 14.5 v => I s = ( Vn - 0 ) / 15k = 64.44 uA I a = ( Va - Vp ) / 1k = -466.67 uA I b = (Vb - Vp ) / 2k = 766.67 uA I c = ( Vc - Vp ) / 1.5k = 22.2 uA I g = ( Vp - 0 ) / 3k = 322.2 uA
10. ### Engineering An op amp circuit simulation

ok ^^ Here is my solution : http://img526.imageshack.us/img526/3480/ee1c.jpg [Broken] http://img444.imageshack.us/img444/1305/ee2f.jpg [Broken] hope it's clear :) thanks
11. ### Engineering An op amp circuit simulation

hi everyone , i solved a textbook question which says : http://img268.imageshack.us/img268/8994/img1379sa.jpg [Broken] http://img685.imageshack.us/img685/3228/img1380z.jpg [Broken] and found analytically : ia = -470 uA, ib = 770 uA , ic = 22 uA, ig= 322 uA, is = 64.5 uA Ra=...
12. ### An omp amplifier problem

it inverts the left hand amp ,, ( the inverting amp ) . Vo = -12 Vs . my question was : part b says that " assume Vsat = 12 " . Why not 15 ? thanks
13. ### An omp amplifier problem

i am confused with this problem , part b : http://img85.imageshack.us/img85/1736/ampe.png [Broken] my question is : Does Vsat reffer to the right amp or the whole circuit ? or something wrong with this problem ? thanks :)
14. ### Help solving the initial value problem

when u divide the right side after integrating by , u should also divide the constant too so it should be
15. ### Help solving the initial value problem

you firstly have to integrate the right side before you multiply it by !
16. ### Average value for a function over its entire domain

^ thanks ! but if we assumed t= infinity and take the limit so it'd be : is it correct ? thanks again !
17. ### Help solving the initial value problem

let and find the integrating factor and then use hope that help :)
18. ### How to solve this trigonometric function

^ now u can factor :)
19. ### Average value for a function over its entire domain

As we know , the average value of a function over is : i wanted to calculate the average value of a function over its entire domain ( e.g ) firstly, i divided the interval into 2 intervals & and calculated the F_avg for each ,,, is my way correct ? thanks !
20. ### Using source transformation for dependent sources

Thanks all of you for your help , i appreciate that ! BTW i got the same answer here : http://img715.imageshack.us/img715/6691/ee1w.png [Broken] http://img198.imageshack.us/img198/2976/ee2u.png [Broken] thanks again :)
21. ### An omp amplifier example

i came across an example in my textbook as shown : http://img593.imageshack.us/img593/8444/img1314i.jpg [Broken] if we used KCL and In = 0 : In = I_100 + I_25 => I_25 = -I_100 but as being written in the answer , I_25 = I_100 ! could anyone explain it for me ? thanks
22. ### Using source transformation for dependent sources

BTW, i checked my answer by using Voltage node analysis and found that Vx = 7.5 V ! why the 2 answers are different ? thanks
23. ### Using source transformation for dependent sources

Hi all , is it possible to use the source transformation for dependent source ..? i guess yes because i came across a problem which asks to use source transformation to find Vx as shown : http://img571.imageshack.us/img571/2389/50111057.jpg [Broken] and my solution was ...
24. ### Node voltage method problem

i solved this problem which asks to find the node voltages ,, http://im12.gulfup.com/2012-02-19/1329666252272.png [Broken] and here is my sol : http://im12.gulfup.com/2012-02-19/1329666252271.jpg [Broken] and finally i found that : v1 = 226.25 volt v2 = 20.92 volt v3 =...
25. ### A practice problem to find Ig & i0

Hi all, i solved a problem which is shown below : http://im15.gulfup.com/2012-02-15/132933328052.jpg [Broken] and here is my solution : http://im15.gulfup.com/2012-02-15/1329333275651.jpg [Broken] i checked my final answer with key solution and found the correct answer is ig= 12.5 Ampere...
26. ### A practice problem to find R

@berkeman @DragonPetter thank you all of you guys , i really appreciate your help ! thanks !
27. ### A problem to find V & I

Homework Statement the problem asks to find V & I so the two circuits are equivalent ,, http://im15.gulfup.com/2012-02-14/1329251616361.png [Broken] i solved it by using KVL & KCL but my answer is in term of t ! my question is Do they really have values ? i mean ,do i have to find t firstly ...
28. ### A practice problem to find R

Hi all , there is a practice problem in my textbook which say : http://im17.gulfup.com/2012-02-14/1329248560881.jpg [Broken] i found after the load is attached that the current through 10 ohm's is 0.2 ampere and through R_L is 0.25 ampere, therefore , the value of R_L is 8 ohm's but...