What direction should Hi Fi tune fuse be installed
04-30-14: GeoffkaitNo :-) What is zero, assuming no DC offset is present, is the net movement of electrons. As your subsequent post sort of indicates you realize, power and energy, and in the case of signal conductors, musical information, are conducted unidirectionally, from source to load (assuming the load is resistive). During one half of each cycle, current flows in one direction, and during the next half of the cycle current flows in the opposite direction. Power is proportional to voltage times current, and that product is positive during both half-cycles (the product of two negatives being a positive), corresponding to transfer of power (and energy, which is proportional to power times time) in one direction (for a resistive load). AC current is generally defined quantitatively on a Root Mean Square basis, corresponding to its ability to convey power and energy into a resistive load, and reflecting the fact that equal amounts of power and energy are conveyed during the positive and negative half-cycles (assuming, again, that no DC component is present). However, I have yet to see a technically defensible explanation of how a fuse would have any "knowledge" of the direction in which power and energy are being conveyed through it. 04-30-14: GeoffkaitThat's a cute saying, but it's not really true. Regards, -- Al |
