[DML] Why Volts gage not Amps?

["daviddelorean" <daviddelorean@xxxxxxxxx>]

Just out of curiosity, why do DMCs (and most cars) have a gage that 
measures the 'volts' of the electric system and not the 'amps'? As I 
understand it, volts is the resistance in the loop, bascially how fast 
the electrons are traveling thru the loop. Amps is the actual amount of 
power in the loop.  So wouldn't it be better to know the actual output 
of the alternator?

Also, in what instance would there be too high voltage in the system? 
Obviously if your alternator died the volts would drop below 12, but in 
what case would they go too high?



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