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Gold Prospecting
Alluvial Gold Prospecting
DC voltage drop over long wires to bilge pump
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<blockquote data-quote="Meroo" data-source="post: 296630" data-attributes="member: 8832"><p>A voltmeter is definetly not what you would refer to as a "load". with the voltmeter we know that there is a potential difference of 12.6v at the end of the cable. lll know that the voltage sitting at the terminals of the battery is 13v. No current required the voltage is always there . Same principal as using a voltstickk with 240v. You can wave a voltstickk over the active of a 240v cable and get a positive indication even if the cable has been cut and the circuit is not complete. A voltstick indicates on the emf of a live cablee as voltage is always present when you have a source of electricityy coming from the other end. All you do when you use a voltmeter is measure the voltage between your positive and negative and the voltage at the end of your cable will be less then at the point of supply (battery) . Again this is due to the resistance of the cable and that lower voltage will always be sitting there at the end of the cable irrespective of connected to a load or not <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="Meroo, post: 296630, member: 8832"] A voltmeter is definetly not what you would refer to as a "load". with the voltmeter we know that there is a potential difference of 12.6v at the end of the cable. lll know that the voltage sitting at the terminals of the battery is 13v. No current required the voltage is always there . Same principal as using a voltstickk with 240v. You can wave a voltstickk over the active of a 240v cable and get a positive indication even if the cable has been cut and the circuit is not complete. A voltstick indicates on the emf of a live cablee as voltage is always present when you have a source of electricityy coming from the other end. All you do when you use a voltmeter is measure the voltage between your positive and negative and the voltage at the end of your cable will be less then at the point of supply (battery) . Again this is due to the resistance of the cable and that lower voltage will always be sitting there at the end of the cable irrespective of connected to a load or not :D [/QUOTE]
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Gold Prospecting
Alluvial Gold Prospecting
DC voltage drop over long wires to bilge pump
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