Recent content by bibo_dvd

  1. bibo_dvd

    How Do You Calculate Torque on a Triangular Loop in a Magnetic Field?

    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 a lot to find the torque on the loop but i couldn't get the same result so please help me...
  2. bibo_dvd

    Periodic Complex exponential signal

    omg , now i understand , we need cos(wT) to be always 1 , so cos (2*pi) and (4*pi) and so on , yaaaayyyyy :D Thx man for help :)
  3. bibo_dvd

    Periodic Complex exponential signal

    okay , i know Euler's formula but i can't understand " wt=m*2*pi " or "T=m*(2pi/w) m=positive integer" how did this part was given ??
  4. bibo_dvd

    Periodic Complex exponential signal

    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 until 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...
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    Problem with electric flux density

    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...
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    What Does a Unit Vector Field Look Like in Cartesian Coordinates?

    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
  7. bibo_dvd

    Engineering [Help] with Numbering System Digital Circuit

    Hahahah ..i think ..it depends on the base we are using , Berkeman :biggrin:
  8. bibo_dvd

    Engineering [Help] with Numbering System Digital Circuit

    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 :))
  9. bibo_dvd

    Engineering [Help] with Numbering System Digital Circuit

    [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...
  10. bibo_dvd

    [help] finding the total electric flux

    hmmm , this means that i will integrate r^2 sin(ceta) *d(ceta)*d(phi) ??
  11. bibo_dvd

    [help] finding the total electric flux

    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 don't...
  12. bibo_dvd

    [Help] in the integration of electric field

    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 ?? :)
  13. bibo_dvd

    [Help] in the integration of electric field

    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 ...
  14. bibo_dvd

    How Do I Design a Regulated Power Supply Circuit in Proteus?

    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 :)
  15. bibo_dvd

    What's the Difference Between These Two Diode Limiter Problems?

    you mean that the output waveform will equal zero in the positive half and in the negative half it will equal -10v-0.7v ?? or what ??
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