Volts to ohms calculation formula with amps
R(Ω) = V(V) / I(A)
The resistance R in ohms (Ω) is equal to the voltage V in volts (V), divided by the current I in amps (A).
So,
Ω = V / A
ohm = volt / amp
For example:
Current (I) = 2A
Voltage (V) = 3V
Resistance (R) = 3V / 2A = 1,5Ω
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Volts to ohms calculation formula with watts
R(Ω) = V2(V) / P(W)
So the resistance R in ohms (Ω) is equal to the square value of voltage V in volts (V), divided by the power P in watts (W).
So,
Ω = V2 / W
ohms = volt2 / watt
For example:
Voltage (V) = 3V
Power (P) = 4W
Resistance (R) = (3V)2 / 4W = 2,25Ω
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