hello guys
iam doing my homework in magnetic fields course
and i found this problem i solved (a) and (b)
by using F=I L x B and the total force on the triangular loop would be zero
but in (c) i tried alot to find the torque on the loop but i couldn't get the same result
so please help me...
hello guys ..
first of all , iam not sure that i should type this thread here . so excuse me for that
in this problem i can understand the part untill it's said that w=0 then x(t)=1, which is periodic for any value of T
but i can't understand the part after that in the case of w is not equal...
hello guys :)
i need your help with this problem
i can understand that in (a) we will use the integral of row(v) * dv to get the charge
and in (b) we will use the formule D(r)=Q/[4*PI*r^2]
but in (C) should it be zero or what ??
and if it should be zero why in the solution manual it...
Hello guys !!
i have this problems while solving problems on vector calculus ..
i solved (a) , (b)
as i put P(2,4,3) in the formula of S and i solved it and i solved (b) as a(S)= S/lSl
but in (c) i don't how what should i do to solve it ..please help me guys ..Thank you
This was the first chapter of Digital Circuits ..an Introduction for binary and other numbering systems ...this was the first section of the course :D
and if 3 * 6 = 22
then 3 * 6 = 2+2x then base = 8 :))
[Help] with Numbering System "Digital Circuit"
Hello Guys ..
iam having an exam on digital circuits and i try to work on some problems about numbering systems
and i found this problems but i couldn't solve it ..
i said that (x-3)(x-6)=x^2-11x+22
then i said that...
Hello Guys !!!
iam studing the electric flux and how the relationship between D ( electric flux density ) and E ( elecric field)
but i found this problem and i don't know which formula should i use to solve it to find the electric flux
i know that Q=(Psi)=the electric flux but i...
the problem is that iam not very good at integration :( and i don't know from where should i start ..i mean which book or tutorial should i start with to help me with this type of examples ?? :)
Hello guys !! :)
i need your help in the integration which is used to calculate the total charge in the electric field
in a continuous volume charge distribution
in this example i can't understand how the integration was done ..so please help me with this :)
The example ...
hello guys ...
i want to design this circuit on proteus and print it to put it on a board
this is a regulated power supply circuit
the problem is that iam a beginner in proteus ...so can anyone help me how to start ?
The Circuit :
please help me guys with this ..Thanks :)
okay in the + input the diode will be reverse biased so the current will not pass , but in the case of - input the diode will be forward biased and the current will pass
am i right ??
hello guys
while studing the diode limitters
i found two examples i solved the first one but i couldn't with the second
1 -
2-
in the first i know that the diode while be forward biased in the negative half of the signal
so the negative half will be limitted to -0.7 v...
okay that's mean that we can turn the symbol of the battery if we turned "a" and "b" in the other side ??
i mean if we put b in the upper right side and a in the lower right side ?? :)
Hello guys ..
i need your help with something
in this photo i understand the way to calculate R thevenin's and the way to calculate E thevenin's
but i couldn't understand
why did we put the polarity in this way ??
i mean why can't we put switch the polarity of the battery ...
hello guys
i have been trying to solve this problem for a long time but i couldn't so i need your help..
iam trying to analyze the circuit using mesh analysis
so i converted the current so to voltage source E=2*10=20V
i don't know how to redraw the circuit taking this shape...
hello guys !!
i know that in zener diode limitting circuit
there are three types : 1-limitting Positive peak 2-limitting Negative peak 3-limtting both peaks
and i know that output voltage for
limitting positive peak =VZ+0.7v
limitting negative peak= -VZ-0.7v
but i don't know what will...
hello guys :))
the question is :
in (a)
IT= 10/[4k||8k+4k||4k]=2.14 mA
but i can't calculate I so please guys help me i tried many times to get it but i couldn't :(
thx guys !!
Hello Guys !!
While Studing coupling transformers i found this problem
i tried to solve it
but i don't know if my solving is right or no !!
so tell me :)
The problem :
My solve is :
V(out)=nV(in)
V(out)= 2 * 312 = 624 v
PIV = V(out) = 624 v
and if the diode is...
Nodal Analysis , Can't Understand the direction of a current !!
In This Question "Nodal Analysis" we will apply kirchoff's current law ..
My Question is :
Why in Fig 8.51 and 8.52 the currents take these directions ??
i tried to get it but i couldn't
Photos :
Thanks...
okay iam trying to apply KCL by myself so please tell me
am i right or not ??
I3 = I4 + I5 +I7 + I8
so
4 A = 0.5 I8 + 0.25 I8 + (1/3) I8 +I8
so
I8 will be 3.7 A
i feel that i'm very stupid :shy:
i don't know the right way to apply KCL here
We Didn't take applications on KCL yet but i tried to apply it on simple circuits and i found it easy
but i don't know how to apply it on this circuit so please tell me :))
okay .. this is the exact question and the exact statments which are required
i want to know how to get I8 because i don't know which law should i use to find ??