How one can say about a device (e.g: a light holder
contains 20 or 30 L.E.Ds which glows when power supply is
off, from which source they are getting the supply.....
battery or capacitor) without removing and opening up its
case ?
capacitor only for short time operation.if u want to glow long term battery is preferable.
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What is mean by sink and source in term of PLC and drives,where and how they used in logic
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Hello seniors m an engineering student in 3rd yr..i want to know what are the software course in electrical field?i wanted to do certification course but i dont know much about the course?..Regards
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