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# How do you figure how many watts amps or volts?

818283 ###### 2015-07-15 21:46:25

Simple is just to know two formulas

Ohm's Law

V = IR

Power

P = IV

From those you can calculate voltage, amps, watts, ohms

V = Voltage (volts)

I = Current (amps or amperes)

R = Resistance (ohm's)

P = Power (watts)

Just solve for what you are missing.

Voltage times amps being drawn shows watts produced.

Watts divided by voltage shows amps being drawn or watts

divided by amperage shows voltage applied.

= = = = = = = = = = = = = = = = =

Power in watts (P) is voltage in volts (E) times current in amps(I).

P = E*I, E=P / I, I = P / E.

In a.c. that is peak to peak. To derive actual R.M.S. wattage (The true ability to do work)

you multiply peak to peak by 0.3535.

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