# How To Determine Voltage Drop In A Series Circuit

By | June 3, 2021

Have you ever wondered how to determine voltage drop in a series circuit? You’re not alone! Calculating the voltage drop in a series circuit is one of the most important tasks an electrical engineer is likely to face. Knowing how to measure voltage drop in a series circuit is essential for any project dealing with electricity.

Voltage drop is the total amount of energy lost when an electrical charge moves through a wire or circuit. To understand how to calculate voltage drop, it helps to understand a few basics of electricity and circuits. A series circuit is a circuit in which electrons move from one component or "node" to another, without returning to their source. This type of circuit allows the current in the entire loop to be the same; however, the voltage drop of each component will vary depending on its resistance.

To determine the voltage drop in a series circuit, you’ll need to calculate the total resistance of the circuit and the total current passing through it. Knowing these two pieces of information will allow you to calculate the equivalent impedance, or total voltage drop, of the circuit. The formulas to use are: Total Resistance (R) = R1 + R2 +…+Rn; and Total Current (I) = V/R.

Once you’ve determined the total resistance and current, you can calculate the equivalent impedance (Z) of the series circuit. This is simply the voltage drop divided by the total current. To figure this out, use the formula Z = V/I. Keep in mind that the equivalent impedance of a series circuit is equal to the sum of all the individual resistances.

Knowing how to calculate voltage drop in a series circuit will help you complete your electrical projects more accurately and efficiently. With a little practice and a bit of knowledge, you’ll be able to calculate voltage drops and create impressive electrical projects in no time. So don't be intimidated by the task, take the time to learn the basics and you'll be sure to make great progress.

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