Ohm's law

Ohm's law

Ohm's Law is a fundamental principle in electrical engineering and physics that states the relationship between electric current, voltage, and resistance in a conductor. The law can be expressed mathematically as:

V = IR

where:

• V is voltage (measured in volts)
• I is electric current (measured in amperes)
• R is resistance (measured in ohms)

This equation states that the voltage (V) across a conductor is proportional to the current (I) flowing through it, given a constant resistance (R).

Ohm's law can also be expressed in other forms, such as:

• I = V/R (current is proportional to voltage divided by resistance)
• R = V/I (resistance is proportional to voltage divided by current)

This law provides a basis for understanding and analyzing electrical circuits and is used in many applications, from power distribution systems to electronic devices.