Amps, watts, volts, and ohms are all units used to measure different aspects of electrical energy and properties of electrical circuits. Here is a brief explanation of each:

To relate them to an everyday example, it’s like the flow of water (amps) through a hose is determined by the water pressure (voltage), and the rate at which water flows (wattage) is determined by both the pressure and size of the hose.

According to Ohm’s Law,
“the current through a conductor between two points is directly proportional to the voltage across the two points, and inversely proportional to the resistance between them. Mathematically, this can be expressed as I = V / R, where I refers to the current in amperes, V refers to the voltage in volts, and R refers to the resistance in ohms“.

Ohm’s law

Ohm’s law can be used to explain the relationship between amps, voltage, wattage, and resistance. 

Amps (A) measure the amount of electrical current flowing through a circuit. The unit of measurement is amperes. The current (I) is directly proportional to the voltage (V) and inversely proportional to the resistance (R). Therefore, according to Ohm’s law, I = V / R. This formula shows that the current flowing through a circuit increases as the voltage increases and decreases as the resistance increases.

Voltage (V) is the measure of electrical potential difference between two points in a circuit. The unit of measurement is volts. Voltage (V) is directly proportional to the current (I) and resistance (R). Therefore, according to Ohm’s law, V = I x R. This formula shows that the voltage across a circuit increases as the current increases and increases as the resistance increases.

Wattage (W) measures the rate of energy transfer in a circuit. The unit of measurement is watts. Wattage (W) is calculated by multiplying the voltage (V) by the current (I). Therefore, according to Ohm’s law, W = V x I. This formula shows that the wattage of a circuit increases as the voltage and current increases.

Ohm (Ω) is the unit of measurement for resistance. Resistance (R) measures how much a material or device opposes the flow of electrical current through a circuit. According to Ohm’s law, the resistance (R) is inversely proportional to the current (I) and directly proportional to the voltage (V). Therefore, R = V / I. This formula shows that the resistance in a circuit increases as the voltage increases and decreases as the current increases. 

Together, these units provide a complete picture of the flow and management of electrical energy in a circuit. Basically, amps measure the flow of electricity, voltage measures the force behind the flow, and wattage measures how much energy is being consumed.

Overall, Ohm’s law provides a fundamental understanding of the relationship between amps, voltage, wattage, and resistance in a circuit.