Ohm's Law states the relationship between voltage, current, and resistance in an electrical circuit. It is used to calculate any one of these values if the other two are known.
Welcome to our Ohm’s Law Calculator, your simple and easy-to-use tool to calculate voltage, current, and resistance in any electrical circuit. Whether you're a student, an engineer, or just a DIY enthusiast, this calculator will help you solve Ohm's Law problems in no time.
Ohm's Law is a fundamental equation in electricity that defines the relationship between voltage (V), current (I), and resistance (R). The equation is:
V = I × R
Ohm’s Law allows you to determine any of these three variables (voltage, current, or resistance) if the other two are known. It is a simple and powerful formula that helps engineers, scientists, and students understand electrical circuits.
Our Ohm's Law Calculator allows you to calculate:
To use the calculator, you simply need to input the known values, and the calculator will compute the unknown value using Ohm's Law.
If the current is 2 A and the resistance is 5 Ω, you can use the formula:
V = I × R = 2 A × 5 Ω = 10 V
The calculated voltage is 10 V.
If the voltage is 20 V and the resistance is 4 Ω, you can use the formula:
I = V / R = 20 V / 4 Ω = 5 A
The calculated current is 5 A.
If the voltage is 12 V and the current is 3 A, you can use the formula:
R = V / I = 12 V / 3 A = 4 Ω
The calculated resistance is 4 Ω.
Ohm’s Law is a fundamental principle in electricity and electronics. It plays a crucial role in designing and troubleshooting electrical circuits. By knowing the relationship between voltage, current, and resistance, you can optimize circuits for efficiency, safety, and reliability.
Ohm's Law is widely used in various fields:
This calculator provides quick, accurate results and is easy to use for students, engineers, and hobbyists. It's an excellent educational tool for understanding how voltage, current, and resistance are related in a circuit.