# Ohm’s Law Calculator

The Basics of Electrical Circuit

Most people think of electrical circuits as a mysterious network of wires and components that power our homes and gadgets. But if you understand the basic science behind circuits, they’re really not that complicated.

A circuit is simply a path that electrons can flow through to create an electric current. It starts with a power source, like a battery, which provides the energy to push the electrons along. The electrons then flow through conductors, like wires, to reach the load, which is usually something that uses electricity, like a light bulb.

If there’s a break in the circuit, or an open circuit, then the electrons can’t flow and there’s no current. That’s why it’s important to have all of the connections in a circuit secure and free of any breaks.

The strength of an electric current is measured in amps, and the amount of voltage available to push those electrons around is measured in volts. A common analogy to help understand this is water flowing through pipes. The voltage would be equivalent to the pressure of the water, and the amperage would be equivalent to the amount of water flowing.

**History of Ohm’s Law and how does it work**

Ohm’s law is one of the most important laws in physics. It states that the current flowing through a conductor is proportional to the voltage applied to it. In other words, if you increase the voltage, the current will also increase, and resistance will decrease. The law is named after **German physicist Georg Ohm**, who first discovered it in **1826.**

Ohm’s law is essential for understanding how electrical circuits work. It allows us to calculate the amount of current flowing through a circuit, and also how much voltage is required to make that happen. Without this law, we would be unable to design or build anything that uses electricity!

**What is Ohm’s Law Formula:**

There are three main equations that make up Ohm’s law:

I=V/R,

V=IR

R=V/I.

These equations tell us that the current (I) flowing through a conductor is equal to the voltage (V) divided by the resistance (R). We can use these equations to solve for any of the three variables, depending on what information we have.

For example, let’s say we want to find out how much current is flowing through a circuit with a voltage of 12 volts and a resistance of 3 ohms. We would use the equation I=V/R to solve for I:

I = 12 volts / 3 ohms

I = 4 amps