Recent content by kobulingam

  1. K

    What is the benifit of using more than one reistor vs one?

    Can you post a schematic of YOUR idea vs. THEIRs?
  2. K

    Does Faraday's Law Account for Varying Induced Flux in a Loop?

    I just made that question up to explain the issue I'm having in understanding Faraday's law. It's not a problem from anywhere. If you mean that you also "considered" this issue a month ago and worked out some proof where we can ignore the self_flux, then that would be great if you can scan...
  3. K

    Does Faraday's Law Account for Varying Induced Flux in a Loop?

    Say we have a circular loop of wire with some area and a uniform magnetic field pointing directly into it (no angle). What if the magnitude of B is something like B(t) = 100T^5 + 100t^4 + 100T^3 + 100T^2 + 100T + 100 Then finding an expression for emf in loop of wire will be very...
  4. K

    Does Faraday's Law Account for Varying Induced Flux in a Loop?

    Faraday's law says induced emf = - d(flux)/dt If this is applied to a loop where induced emf causes currents, and thus flux itself, do we have to consider that flux (of course we don't if it's constant)? If the external flux has a nonzero second derivative, then the induced emf is...
  5. K

    Faraday's law and induced emf in a loop

    I have something like this in mind http://img299.imageshack.us/img299/3151/loopandstubky1.jpg The whole thing is made of wire, but only the circular part is OPENED, while the other extended part is insulated wire that is closed (no area to receive flux). So if we apply a changing flux to...
  6. K

    Faraday's law and induced emf in a loop

    (As magnitudes) Faraday's law states that induced emf in a conducting loop by a changing flux, say x, is: emf = dx/dt Now if we have a circuit with the loop in series with wires (which are then tied together), how do I picture the voltages/currents in this circuit? I mean, the actual...
  7. K

    Z_2 /<u^4+u+1> isomorphism Z_2 /<u^4+u^3+u^2+u+1>

    Z_2[u]/<u^4+u+1> isomorphism Z_2[u]/<u^4+u^3+u^2+u+1> Homework Statement How to figure an isomorphism from Z_2[u]/<u^4 + u +1> to Z_2[u]/<u^4 + u^3 + u^2 + u + 1> What I can now show (after a page and a half of work) is that the two polynomials generating the ideals are irreducible...
  8. K

    Prime Ideals in Z[sqrt(2)] and Cosets in ZxZ/I

    I got 3)a) by doing exactly what you are implying, but can't get it to work for 3)b). For 5), yes, a set generated by memebers of a ring like that are always ideals.
  9. K

    Prime Ideals in Z[sqrt(2)] and Cosets in ZxZ/I

    I'm in an algebra (ring) class and I'm looking at a previous midterm (I have attached it here to prove that this is not homework problem). Can anyone tell me how to answer question 3 and 5? I will repeat again in here: 3) Let R = Z[sqrt(2)] and P = <sqrt(2)> the ideal generated by...
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