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The fuses are made of either a solder/lead type mixture, or it's a thin wire, the thickness makes the fuses melt at a faster or slower rate when they get hot from a "short" or too much draw for the circuit. When a fuse "blows" is just a saying. But if you put a large enough "short" on a fuse it will seem to "blow" when it melts extremely fast.
Also, to much resistance caused by dirty or loose connections on a standard plastic spade fuse can cause the plastic portion to melt.
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What will happen if terminals of the battery are reversed?
If terminals of the battery are reversed, it will short the device that is using the battery. On a car reversing the cables can blow fuses, melt wires, and fry computers.
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Yes
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Fuses only need to be changed when they blow. They are not a wear item.
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I have a chrysler and i have to constantly have to replace the 20amp fuse to start the car why.
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radio broke see car dealer
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Yes, blown fuses, burnt wires, fried computers......
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If by over charges you mean that it produces to much current then you can fry sensitive electronics and blow fuses.
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A short to ground causes all fuses to blow. If you have a trailer connecter then start there first.
