how to find ampere?

Question

220 volts

Answer 1

You can't calculate the current from just the voltage. You have to know the resistive load or equivalent, too.

Current = Voltage/Resistance

Try an internet search on "Ohm's Law."

Answer 2

So far you have 3 good answers. Voltage alone is worthless to determine what the current is in a circuit. That said, if you have a known resistance, such as 220 ohms in series with this 220 volts, and you need a quick 'take' on the current through the circuit, and an AC voltmeter is at hand, measure the voltage across the resistor. This will give you the current moving through that resistor. In this case, you'll read 1 volt, which equates to the current flowing through the resistor. A simple run through of Ohms Law will prove this to be accurate. Ohms Law is a key formula to remember since it can be used almost anywhere.

Answer 3

If you are asking a question about amperage and only give the voltage it is very clear that you do not understand what amperage is.
Voltage is an energy, and it has a potential with respect to what is called ground or 0 v potential. This energy seems to act like a force to push electrons through a medium. The medium that the electrons pass through has a natural resistance to the flow of electrons. Now that I have used the term FLOW and you seem to understand the concept, then you may use the term amperage instead of 'flow of electrons'. This is because that is what amperage is, the measure of the flow of the electrons that pass through a medium.

Answer 4

http://www.angelfire.com/pa/baconbacon/page2.html

As you can see you must have 2 parts of the equation