Ohm's Law Calculator

Current (I):
Voltage (V):
Resistance (R):

Ohm's Law formula

ΔV = I • R

The calculator could get the current voltage or resistance when any two of them knows.

For example, Enter Current is 3, resistance is 2, then voltage is 6 V, Enter voltage is 3, current is 8, then resistance is 0.375 ohm.

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