E on the voltmeter?

I think it still stands for "Volts." I don't know for sure, but I know that in a lot of science/physics/electrical engineering textbooks they use "E" as the symbol for "electro-potential," which is what a Volt is a measurement unit of. (In other words "electro-potential" and "voltage" mean the same thing). So often in these books they will write ohms law as E=IR, instead of V=IR. Kind of like using "I" on an ammeter because "I" is the traditional symbol for current, rather than using "A" or "Amps" for "amperage."

Especially considering that the number you quoted is "26.2 E." That also leads me to believe that it is Volts or voltage. A lot of airplane electrical systems are 24 volt systems (meaning that they can be powered by or use a 24 volt battery). Well to re-charge a 24 volt battery, the system actually needs to carry a little more than 24 volts. Many systems use 26-28 volt chargers (whether that is a generator or an alternator, a transformer-rectifier, whatever).
 
Oops. I answered the wrong question. I thought you were not sure whether or not it WAS a voltmeter. E stands for electro-potential or electrical potential... which is a quantity rather than a unit of measurement. Volts or V is the unit of measurement.

If you were good at analogies in high school---

Electro-potential is to Volts as speed is to Knots.

That clear it up?
 
fish314 said:
Oops. I answered the wrong question. I thought you were not sure whether or not it WAS a voltmeter. E stands for electro-potential or electrical potential... which is a quantity rather than a unit of measurement. Volts or V is the unit of measurement.

If you were good at analogies in high school---

Electro-potential is to Volts as speed is to Knots.

That clear it up?
Click to expand...

Thanks alot! :rawk:
 
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