Volts to Ohms conversion calculator is a useful calculation tool that lets you convert volts to ohms provided that either current in amps or power in watts is known.
List of Contents
Volts to Ohms Calculator
Volts to Ohms Formula
Volts to Ohms When Current is known
Formula: R = V/I
where
R = Resistance in ohms
V = Voltage in volts
I = Current in amps
Volts to Ohms When Power is known
Formula: R = V2/P
where
R = Resistance in ohms
V = Voltage in volts
P = Power in watts
Solved Example & Calculation on Volts to Ohms
Example#1: An unknown resistance has 0.5 Amps of current flowing through it when a 12 V source is connected across it. Find the resistance of.
Solution: R = V/I = 12 V / 0.5 A = 24 ohms
Example#2: Certain resistor dissipates 1 watt of power when a 9 V battery is connected across it. What is its resistance?
Solution: R = V2/P = (9)2/1 = 81 ohms
Summary
More Calculators: