What is the current in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?

The current in a circuit can be calculated using Ohm's Law, which states that the current (I) is equal to the voltage (V) divided by the resistance (R). The formula is:

I = V / R

In this case, the applied voltage is 120 volts and the resistance is 80 ohms. By substituting the values into the formula:

I = 120 volts / 80 ohms = 1.5 amperes

This calculation shows that the current flowing through the circuit is indeed 1.5 amperes.

Understanding Ohm's Law is essential for analyzing electrical circuits, as it provides a fundamental relationship between voltage, current, and resistance. This principle is commonly used in various applications, making it a vital topic for amateur technicians to master.