SO how many amps will I get if I charge a ONE FARRAD cap up to 12 volts?

[raspberrypi]

Are amps not a form of energy?

Yes.

http://electricalengineeringforbeginners.blogspot.com/2009/07/voltage-current-power-and-energy.html

Electrons are being moved, they have mass, hence energy equivalence. They
have intrinsic energy as a particle, wave function, and when moved work is
expended.


Regards, Dana.

Definitely not.  Amps are the rate of charge movement, not energy.  You have to know the voltage before you can calculate the power.  You would not say that velocity is energy either, would you?  You have to know the mass before you can calculate the kinetic energy, right?

Ratch

Also you have to take into account time. watts isn't energy until its been some amount of time, other wise its just potential to do work. Like asking how many kilowatts are in a gallon of gasoline.

[yuzuha]

Do you have pictures? Whats a bath tub cap? I'm guessing the windows were stacks of glass with foil n them?

When I made a layden jar from saltwater it didnt seem to make a huge difference when I connected it up to my $5 7,000kv (yes they actually said it makes seven million volts in the description) ebay step up. But did work as a cap when I put lower voltages in it.  But it did charge it self so much that any metal connected to the top would quickly oxidize and corrode apart. 1" alligator clips would turn to rust in a week in open air. No effect on the alligator clips attached to the foil on the outside end. So it would charge in one direction. I'm guessing the top electrode that went into the salt water was positive.

Sorry no pics that was back in the late 1970s.   A bathtub cap is a sort metal can, often rectangular, that is filled with oil and range from the size of a walnut to several hundred kg in size and with voltage ratings from a few hundred to thousands of volts.   Think they got the nickname from the smaller rectangular ones used in Ham radios.   Yes my caps were panes of glass about 1 meter square with a 10-15cm margin around the edges.