hello guys :)

I have confused about determine the order(degree) of the transfer function T(s) (System) :confused: :confused:

As the attached photo,,,, Why my doctor consider the Field-Controlled DC motor T.F is 2nd-order sys. although i see those just are three poles ????(& the highest power of S is three)??
While the Armature-Controlled DC motor T.F. is 3rd-order sys.

Hii guys :)

I have been solved the problem about plotting the locus of electric field where the equation of E is given But when i watching the solution of that question from a solution manual of applied EM book ,,, I have been confused :confused: :confused:

so i hope u to help me to find the mistake in my solution Or Is the Solution manual incorrect ??

Hi guys.. :)

I founded FS coefficients for the questions as attached photo
By converts all terms of X(t) into exponential form ,
Co = 5
C1 = 1 , C-1 = 1
C2 = 2*exp(pi/6) , C-2 = 2*exp(-pi/6)
C3 = 3/2 * exp(-pi/2) , C-3 =3/2 * exp(pi/2)
But How i find Ck in general to represent it in any forms of FS(complex exp.

Hi.
I have a question.. Why we cant use voltage divider rule instead of source transformation?
I attached a photo of the problem..
I wish someone explains!

Thanks alot

Attached Images

Calculate the gain vo.jpg (80.8 KB)

Hello my friends,, :)

I tried to solve the question as written in attached photo,,and I couldn't answer it correctly, ,, please help me to know where's the wrong step(s)?

Attached Images

Block diagram.jpg (100.8 KB)

Hi, I want to extend the range on the 4 channel 433.92Mhz RF remote control.

I have read that you could extend or solder a small antenna to it but I can't find where the antenna on the circuit board is.

The remote is for Watts Clever Power Socket. Could someone tell me if I am on the right track? How/ where would I look for the internal antenna on the remote.

Hi guys :) ...

I have some questions about Integration of unit-step ,rect & delta functions

I have been to solve it by plotting functions as attached photo..
i need u to confirm from my solution and guide me to correct method if they are wrong :confused:

please help me :)

Attached Images

int.jpg (115.6 KB)

Attachment 60868
Could someone look at above circuit and see if the answer I picked is close to correct? I picked D but believe the answer could also be C.

Attached Images

photo.JPG (290.6 KB)

Hi my friends :)

i'm studying Transfer function T(s) subject ,, i faced problem with the question and i had tried to solve it as attached photo

Please help me and thanks in advance,, :) :)

Attached Images

q.jpg (72.4 KB)