Bob F Posted February 12, 2009 Report Share Posted February 12, 2009 The sum of voltage drops in a series circuit equals the: voltage across the largest load. voltage across the smallest load. source voltage. shunt circuit voltage. Quote Link to comment Share on other sites More sharing options...
Bob F Posted February 13, 2009 Author Report Share Posted February 13, 2009 (edited) Mixed answers on this one. The sum of voltage drops in a series circuit equals the Source voltage (i.e. the battery voltage on a boat). The diagram below shows this a bit clearer. You shouldn't see any volt drop across a fuse or a closed switch because they are basically shorts. If you do see a volt drop across either a these it is a sign of a bad connection which acts as a resistor. The voltage drops occur across the loads, which in this diagram are to two lamps. If the lamps had the same resistance the voltage drop across each lamp would be the same. In the diagram the voltage drops are different, so the lamps must have a different resistance. Edited February 13, 2009 by Bob F Quote Link to comment Share on other sites More sharing options...
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