Understanding basic passive components: resistors, capacitors, inductors.

Discussion in 'Resource Discussion' started by hevans1944, Mar 30, 2018.

  1. hevans1944

    hevans1944 Hop - AC8NS

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    hevans1944 submitted a new resource:

    Understanding basic passive components: resistors, capacitors, inductors. - passive electronic components

    Read more about this resource...
     
    hevans1944, Mar 30, 2018
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    Arouse1973, Harald Kapp and bushtech like this.
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  2. hevans1944

    Harald Kapp Moderator Moderator

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    May I suggest you use different font styles (like bold, underline, diff. sizes) to improve readability of your resource by emphasizing the structure of the document? E.g.:

    Why passive components?
    ...
    Resistors
    ...
    Resistor values
    ...
    Resistor wattage
    ...

    Capacitors
    ...
    Capacitor values
    ...

    Looking forward to what's obviously to come :)

    Cheers,
    Harald
     
    Harald Kapp, Mar 30, 2018
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  3. hevans1944

    hevans1944 Hop - AC8NS

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    @Harald Kapp, I was going to go back and make "pretty print" after I got my thoughts down on "paper" so to speak. Lots of editing left to do. This "project" was inspired by a new poster from India who asked about capacitors, and to whom I gave a very short answer and a link to hyperphysics websites that probably wasn't very useful to him at this point in his electronics education journey. Then I examined our resources section and discovered no one had really addressed this entry-level problem. It's easy to offer basic circuit analysis advice to newbies, such as learn how to apply Ohm's Law and Kirchoff's KVL and KCL Laws, but where does that leave the newbie who has no idea what a resistor, much less a capacitor or inductor, is?

    So, I will try to remedy the situation, hopefully with a little help from my friends here on EP. I will also try to provide some useful links for a deeper understanding, but the problem with that is finding sites that won't fade away with time. Some of the best links, IMHO, are links to threads on Electronics Point!
     
    hevans1944, Mar 30, 2018
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  4. hevans1944

    Arouse1973 Adam

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    I think this will be a great resource. If you need any help, let me know. I don't mind helping to put some information together.
    Cheers
    Adam
     
    Arouse1973, Apr 1, 2018
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  5. hevans1944

    Harald Kapp Moderator Moderator

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    I second that.
     
    Harald Kapp, Apr 1, 2018
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  6. hevans1944

    hevans1944 Hop - AC8NS

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    Thanks, Adam! And Harald, too, of course. Comments and advise appreciated. The problem is sifting through all the information available, both on-line and in my head, and deciding what is appropriate material to throw at a newbie, while still possibly being useful as a reference to others.

    I like to throw in a little history, too, because that was one of the avenues I explored as a youngster learning about electricity. Sometimes the history is a bit strange, like Faraday "just happening" to notice out of the corner of his eye (according to one account I read) the deflection of a magnetic compass needle when a nearby current was started or interrupted, and from that observation and later experiments making his insightful deductions about magnetically induced currents. It's one of the cornerstones of Maxwell's Equations. Here is a nice Java app that demonstrates the effect (magnetic induction) graphically with the aid of a mouse. I might work that into the section on inductors, but some folks are a bit leery of using Java apps hosted on Internet sites because of malware entrance possibilities. What do you think?
     
    hevans1944, Apr 1, 2018
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  7. hevans1944

    GeekGuy

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    Nice! Resistors seem simple, even to beginners, but can be a lot more complicated than meets the eye. Things like power rating, noise, and temp co may be an issue depending on your application. Here's 7 resistor specs newbies (and everyone else) may need to consider: https://circuitcrush.com/7-resistor-specs-to-consider/
     
    GeekGuy, Apr 17, 2018
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  8. hevans1944

    hevans1944 Hop - AC8NS

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    @GeekGuy, that's an interesting blog you have there. Thanks for the tips on selecting resistors.
     
    hevans1944, Apr 17, 2018
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  9. hevans1944

    GeekGuy

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    Glad you enjoyed it @hevans1944. If there's any topic you or the people here think would be helpful let me know and maybe I can do a post on it!
     
    GeekGuy, Apr 18, 2018
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