How to Calculate Current in an Electrical Circuit

What is the relationship between current and resistance in an electrical circuit?

According to Ohm's law, how can we calculate the current in an electrical circuit?

Answer:

Ohm's law states that the current flowing through a conductor is directly proportional to the voltage across it and inversely proportional to the resistance of the conductor. Mathematically, the relationship is represented as:
I = V / R

When dealing with an electrical circuit, it is important to understand the relationship between current, voltage, and resistance. Ohm's law provides a fundamental principle for calculating the current in a circuit based on these parameters.

Simply put, the current (I) in a circuit is equal to the voltage (V) across the circuit divided by the resistance (R) of the circuit. This formula allows us to determine the amount of current flowing through a conductor based on the voltage applied and the resistance of the conductor.

By rearranging the formula, we can also calculate the voltage or resistance in a circuit if the current value is known. Understanding Ohm's law is essential for analyzing and designing electrical circuits effectively.