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Precision Engineering
Ohm's
Law
Calculate Voltage · Current · Resistance · Power
Voltage (V)
*
Volts (V)
Current (I)
*
Amperes (A)
Resistance (R)
*
Ohms (Ω)
Power (P)
Watts (W)
Find V: I=2A, R=10Ω
Find I: V=12V, R=10Ω
Find R: V=12V, I=2A
Find P: V=12V, I=2A
All: V=12V, I=2A, R=6Ω
Calculate
Clear
V
Voltage
V = I × R
I
Current
I = V / R
R
Resistance
R = V / I
Voltage (V)
—
V
Current (I)
—
A
Resistance (R)
—
Ω
Power (P)
—
W
🔧 Enter any
2 values
to calculate the rest