Changes between Version 34 and Version 35 of ElectricalIntroduction


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Timestamp:
Oct 12, 2020, 4:25:11 PM (5 years ago)
Author:
David Albert
Comment:

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  • ElectricalIntroduction

    v34 v35  
    3030
    3131* When you get a static shock, such as touching a doorknob in the winter, you are feeling thousands of volts!
     32* Voltages below 48vdc are generally safer to work with because the human body does not conduct them well.  Above 48V, the resistance of the human body breaks down and lots of current can flow through you (which can kill you).  There's a saying: it's the volts that jolt but the mils (mil = 1/1000 of an ampere of current) that kill.
     33* Note that although the 12V battery on your robot generally can't electrocute you, it can still release huge amounts of energy if short circuited which generates a huge amount of heat (enough to melt steel) so robot batteries still need to be treated with great care.
    3234
    3335* Exercise: