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OHM’S LAW CALCULATOR

Ohm's Law relates the three fundamental electrical quantities: voltage, current and resistance.
Power relationships are also given.

 

Ohm's Law triangle

V = I · R     I = V     R = V
                     R           I

P = I · V     P = I2 · R     P = V2
                                              
R

I = (A) Current P = (W)Power
R = (W) Resistance
V = (V)Voltage

OHM’S LAW CALCULATOR

VOLTS=Voltage, AMPS=Current, OHMS=Resistance, WATTS=Power

Select any two spaces and hit Calculate, the other two numbers will be calculated for you.

VOLTSAMPSOHMSWATTS




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FACTORS AND PREFIXES FOR FORMING DECIMAL
MULTIPLES AND SUB-MULTIPLES FOR THE SI UNITS

Multiplication
Factor
Prefix Symbol   Multiplication
Factor
Prefix Symbol   Multiplication
Factor
Prefix Symbol
1012 Tera T   10 Deka da   10-9 Nano n
109 Giga G   10-1 Deci d   10-12 Pico p
106 Mega M   10-2 Centi c   10-15 Femto f
103 Kilo k   10-3 Milli m   10-18 Atto a
102 Hecto h   10-6 Micro        


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