# Ohm’s Law

Ohm’s Law is a fundamental principle in electrical engineering and physics that describes the relationship between voltage, current, and resistance in an electrical circuit. It is named after the German physicist Georg Simon Ohm, who first described the law in 1827.

## Voltage:

Voltage is a measure of the electrical potential difference between two points in a circuit. It is often denoted by the symbol V and is measured in volts (V). Voltage is what drives the flow of current in an electrical circuit.

## Current:

Current is a measure of the flow of electrical charge in a circuit. It is often denoted by the symbol I and is measured in amperes (A). The current in a circuit is determined by the voltage and the resistance of the circuit.

## Resistance:

Resistance is a measure of how difficult it is for current to flow through a circuit. It is often denoted by the symbol R and is measured in ohms (Ω). The resistance of a circuit is determined by the material it is made of, as well as its size and shape.

## Ohm’s Law:

Ohm’s Law states that the current through a circuit is directly proportional to the voltage across the circuit and inversely proportional to the resistance of the circuit. Mathematically, this can be expressed as:

I = V/R

where I is the current, V is the voltage, and R is the resistance.

## Applications:

Ohm’s Law is used in many practical applications, such as designing electrical circuits and calculating the power dissipated by a circuit. It is also used in the development of electronic devices and components, such as resistors, capacitors, and inductors.

Ohm’s Law is a fundamental principle in electrical engineering and physics that describes the relationship between voltage, current, and resistance in an electrical circuit. It is an important tool for understanding and designing electrical circuits, and has many practical applications in modern technology.