Recent content by Munnu

  1. M

    I Question regarding writing proofs

    As a follow-up, I have a question regarding Rules of Inference in Propositional Logic. In referencing pg 6-7 of this link: (https://www.site.uottawa.ca/~lucia/courses/2101-10/lecturenotes/04InferenceRulesProofMethods.pdf), I’ve come to qualify Modus Ponens and Modus Tollens as “kinds of...
  2. M

    I Question regarding writing proofs

    I have a couple general questions regarding writing proofs: Do proofs typically fall into being one out of all of the rules of inference (page 6-7 on this pdf) or is it that generally, most proofs may categorically qualify within a very small subset of the rules of inference (say “many common...
  3. M

    Engineering Circuit theory: capacitor energy storage and discharging/charging times?

    This was useful. Is this some sort of technique-rule in an electronics textbook? Are we talking about E1/E0 values? When I plug in values to solve for each t using t1 = -τ⋅ln(√(E1/E0)), I get: t_100_to_50=0.0159424 t_100_to_25=0.0318848 t_50_to_6.25=0.0478272 I can see that t_100_to_50’s...
  4. M

    Engineering Circuit theory: capacitor energy storage and discharging/charging times?

    I might need a walkthrough, I will try to show what I think I understand from this specific reply. You mean I didn’t need the V_c_init=20V solved for in order to find “how long does it take for the capacitor to discharge to 50% of the initial stored energy”? What would this look like in...
  5. M

    Engineering Circuit theory: capacitor energy storage and discharging/charging times?

    Correct me if necessary: At 50% Charging: There will be current through 3 branches—120 ohm resistor branch, 80 ohm resistor branch, and the 12ohm and 0.5mF capacitor branch. Current flows towards the capacitor’s positive terminal. Charging: RC=((120||80ohm)+12ohm)*0.5mF=60ohm *0.5mF=0.03sec...
  6. M

    Engineering Circuit theory: capacitor energy storage and discharging/charging times?

    This is not my homework. I took it upon myself to answer a textbook question for mental stimulation. I wanted to know if someone can verify if these were the correct values that needed to be solved for, process, and final answer, and if not, what needed to be considered. For the initial...
  7. M

    Studying Smarter CS Edition: Habits and Process?

    I want to be studying more efficiently. My question was not intended as asking for a magic bullet as much as getting to know how do others structure their own learning as a whole, but tweaked towards this topic. I want to know how other people allocate their time and methodically approach...
  8. M

    Studying Smarter CS Edition: Habits and Process?

    I've want to gain fluency when it comes to retaining the code behind sorting algorithms. I want to be able to recall and write them up with efficiency without taking a long time to waddle around until I get it right. They're falling out of my head. Note: I'm not necessarily asking how to...
  9. M

    Does diameter of air coil in electromagnet affect strength?

    That makes sense, but what about air coils? If I don't have an iron coil but rather an air coil. Does having an extremely small air coil diameter (like almost no air coil whatsoever) affect the magnet strength?
  10. M

    Does diameter of air coil in electromagnet affect strength?

    The title is explanatory. I know that an iron core yields a stronger electromagnet. What if you have an electromagnet with an extremely tiny air coil relative to its volume? Does the small air coil diameter effect the electromagnet?
  11. M

    How to understand SN754410 datasheet and current?

    I'm driving 5Ohm resistance hand-wound electromagnets at the output. I want to better understand what current I am getting at the output pins and how to figure that out. You could correct my understanding in the next few lines. I was told that the input pins control the current at the output...
  12. M

    How to understand SN754410 datasheet and current?

    Hi everyone, could someone help me understand how to read the sn754410 datasheet (http://www.ti.com/lit/ds/symlink/sn754410.pdf) At the absolute maximum rating section (7.1) it mentions Ip (Peak output current) and Io (Continous output current). I want to understand if the power source that Vcc2...
  13. M

    How is a Push Solenoid Constructed Differently from a Pull Solenoid?

    Hm, that's helpful to understand. Though, a better question to ask now is what would the load be in both cases (an example of what would be)?
  14. M

    How is a Push Solenoid Constructed Differently from a Pull Solenoid?

    I was reading http://www.rossdecco.com/pdf/how_a_dc_solenoid_works.pdf about push and pull solenoids. I don't quite understand what differentiates the two in terms of construction. What I have is a copper wire wound around a tube and the ends are attached to a battery, like in this I believe in...
  15. M

    Need Help Understanding Transistor Theory: Saturation Region

    Thank you... Maybe I don't/didn't understand it... (I'll admit that I have trouble wording math concepts properly). I also found this word document that explains transistors and answered my question as to why when β >> 1 that i_c = i_e. They had explained that i_c = (β/β+1)i_e and as β >>...
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