Ohm's Law defines the relationship between current, voltage, and resistance in an electrical circuit. It states that the current (I) flowing through a conductor is directly proportional to the voltage (V) across the conductor and inversely proportional to the resistance (R) of the conductor. Mathematically, Ohm's Law is represented as:
V = I * R
where:
V is the voltage across the conductor in volts (V),
I is the current flowing through the conductor in amperes (A), and
R is the resistance of the conductor in ohms (Ω).
This relationship shows that as the voltage across the conductor increases, the current flowing through the conductor will also increase if the resistance remains constant. Similarly, if the voltage remains constant, an increase in resistance will result in a decrease in current, and vice versa.
Ohm's Law is a fundamental principle in electronics and is used extensively to calculate and understand the behavior of electrical circuits. It helps in determining the current flowing through different elements of a circuit when the voltage and resistance are known or in finding the voltage or resistance when the current is known.