Ohm's Law

Ohm's Law establishes a direct relationship between three key parameters in an electrical circuit: voltage (V), current (I), and resistance (R). It states that...

Ohm's Law establishes a direct relationship between three key parameters in an electrical circuit: voltage (V), current (I), and resistance (R). It states that the product of these three values is constant for a given circuit, regardless of the type of components or the length of the circuit.

Mathematically, the equation for Ohm's Law is:

R = V/I

Explanation:

Voltage (V): It represents the amount of electrical energy supplied to a circuit per unit time.
Current (I): It indicates the amount of electric charge passing through a circuit per unit time.
Resistance (R): It represents the opposition to the flow of electric current and is measured in ohms.

According to Ohm's Law, the product of voltage and current will always be equal to the resistance of the circuit. This law allows us to predict the current flowing through a circuit or the voltage across a circuit given its resistance.

Examples:

If you increase the voltage in a circuit, the current will decrease.
If you increase the resistance in a circuit, the current will decrease.
If you increase the resistance in a circuit, the voltage will decrease.

By understanding and applying Ohm's Law, we can analyze and predict the behavior of simple and complex electrical circuits