Simple is just to know two formulas
V = IR
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.
Watts is the figure used to show how much power a device consumes. Watts = volts * amps OR watts / volts = amps, so: At 120 volts, 1000 watts / 120 volts = 8.33 amps, or: At 220 volts, 1000 watts / 220 volts = 4.55 amps
Watts = Volts * Amps Therefore: 70 Watts / 13.8 Volts = 5.07 Amps
Amps * Volts = Watts. 50 Watts at 120 Volts = .4 Amps 50 Watts at 12 Volts = almost 4.25 Amps 50 Watts at 1 Volt = 50 Amps
Amps, volts and watts are interrelated, but you need to do a little math. Amps * Volts = Watts
To find the watts you have to multiply the volts by the amps. If there are no amps, there are no watts either.
Watts are not rated in amps. Watts are the product of amps times volts.
The formula to calculate the relationship between amps, volts and watts is Volts X Amps = Watts or Volts = Watts / Amps or Amps = Watts / Volts therefore; 200 Watts divided by 1.95 Amps is 102.5641 Volts.
watts = volts x amps.
12 volts 1 amp is 12 watts. 12 volts 2 amps are 24 watts. 12 volts 10 amps are 120 watts.
volts times amps = watts
watts = volts * amps--> Amps = watts/ volts therefore; 2000/220= 9.09 amps