Changes between Version 36 and Version 37 of ElectricalIntroduction


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Timestamp:
Oct 12, 2020, 4:32:32 PM (5 years ago)
Author:
David Albert
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  • ElectricalIntroduction

    v36 v37  
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    2828[[Image(static_shock.jpg, left, 10%)]]
    29 Different [http://www.houseofbatteries.com/battery-chemistry-chart-i-52-l-en.html battery chemistries] generate different voltage potentials.  For example, NiMH rechargeable batteries create about 1.2 volts, alkaline disposable batteries create about 1.5 volts, lead-acid rechargeable cells create about 2 volts, and lithium batteries create 3-3.7 volts.  You can connect batteries in sequence (series) to increase the difference in charge (voltage) between the battery terminal at the start of the sequence and the battery terminal at the end; this is called placing the batteries in ''series''.  By placing 6 lead-acid cells in series you can make a 12V battery (which is what we use for robots).  When you buy a 12v SLA battery, it really contains 6 individual 2V cells in one package.  The lead-acid battery is the oldest type of battery, and is the one we still use on our robots, lead-acid batteries have lead terminals and sulphuric acid electrolyte. 
     29Different [http://www.houseofbatteries.com/battery-chemistry-chart-i-52-l-en.html battery chemistries] generate different voltage potentials.  For example, NiMH rechargeable batteries create about 1.2 volts, alkaline disposable batteries create about 1.5 volts, lead-acid rechargeable cells create about 2 volts, and lithium batteries create 3-3.7 volts.  You can connect batteries in sequence (series) to increase the difference in charge (voltage) between the battery terminal at the start of the sequence and the battery terminal at the end; this is called placing the batteries in ''series''.  By placing 6 lead-acid cells in series you can make a 12V battery (which is what we use for robots).  When you buy a 12v SLA battery, it really contains 6 individual 2V cells in one package.  The lead-acid battery is the oldest type of battery, and is the one we still use on our robots, lead-acid batteries have lead and lead-oxide terminals and sulphuric acid electrolyte. 
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    3131* When you get a static shock, such as touching a doorknob in the winter, you are feeling thousands of volts!