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So, The Car Electrical System is way more that just the stuff you see under the hood. Consequently, Apart from the main charging, starting and ignition circuits, there are many other circuits.
As a result, Many of these circuits power:
- Electric motors
- The sensors and gauges of electrical instruments
- Heating elements
- Magnetically operated locks
- The radio
So, How Do We Measure This Information:
Modern cars have a 12 volt battery. A batteries capacity is measured in amp/hours. So, A 56 amp/hour battery should be able to deliver a current of 1 amp for 56 hours. Finally, If the battery voltage drops, less current flows, and eventually there is not enough to make the components work.
Short Circuits And Fuses
The current in a wire may become dangerously high and melt the wire or cause a fire. So, To guard against this, ancillary circuits have fuses. The sudden surge of high current in a short circuit makes the fuse wire melt, or ‘blow’, breaking the circuit. When this happens, see if there is a short circuit or a disconnection. Then install a new fuse of the correct amperage rating. There are many fuses, each protecting a small group of components. Consequently, So that one blown fuse does not shut down the whole system.
So, The starter motor has its own heavy cable, direct from the battery. Also, The ignition circuit furnishes the high-tension impulses to the sparkplugs. And, Finally, The charging system includes the alternator, which recharges the battery.
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