Ohm's Law Calculator is a simple and easy-to-use tool that helps you calculate voltage, current, and resistance according to Ohm's Law.

The Ohm's Law Calculator performs calculations based on Ohm's Law, which states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance. Simply input any two values (voltage, current, or resistance), and the app will instantly compute the missing value, making complex calculations a breeze.

Why use Ohm's Law Calculator?

Ideal for students, engineers, and hobbyists
Helps you understand the relationship between voltage, current, and resistance
Precise and accurate calculations
Free to download and use


Frequently Asked Questions (FAQ) about Ohm's Law

What is Ohm's Law?

Ohm's Law is a basic law of electricity that states that the voltage across a conductor is directly proportional to the current flowing through it, provided all physical conditions and temperatures remain constant. Mathematically, this current-voltage relationship is written as,

V = IR

where V is the voltage across the conductor, I is the current flowing through it, and R is the resistance of the conductor.

What is the unit of resistance?

The unit of resistance is the ohm (Ω). One ohm is defined as the resistance of a conductor that allows one ampere of current to flow when one volt of potential difference is applied across it.

What are the limitations of Ohm's Law?

Ohm's Law is a basic law of electricity, but it does have some limitations. For example, Ohm's Law does not apply to non-linear devices, such as transistors and diodes. Additionally, Ohm's Law does not take into account the effects of temperature on resistance.

What are some applications of Ohm's Law?

Ohm's Law can be used to calculate the voltage, current, or resistance in an electrical circuit. It can also be used to design and troubleshoot electrical circuits.

What are some common mistakes people make when using Ohm's Law?

Some common mistakes people make when using Ohm's Law include:

Forgetting to consider the effects of temperature on resistance
Using Ohm's Law to calculate the voltage, current, or resistance in a non-linear device
Not understanding the limitations of Ohm's Law
How can I learn more about Ohm's Law?

There are many resources available to learn more about Ohm's Law. You can find books, articles, and websites that explain Ohm's Law in detail. You can also find online calculators that can help you calculate the voltage, current, or resistance in an electrical circuit.