Voltage Divider Equation Example

It is often used in analog circuits like op amp based circuits for example where the required voltage may be variable. This is known as the voltage divider formula and it is a short cut method for determining voltage drop in a series circuit without going through the current calculations of ohm s law. Determine the output voltage of the voltage divider circuit whose r a and r b are 6 ω and 8 ω respectively and the input voltage is 10v.

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In this article we will discuss voltage divider formula with example.

Voltage divider equation example. These are examples of potentiometers variable resistors which can be used to create an adjustable voltage divider. A voltage divider circuit is a very common circuit that takes a higher voltage and converts it to a lower one by using a pair of resistors. A voltage divider circuit or a potential divider circuit is a simple electronics circuit that converts a higher input voltage to a lower output voltage just by using a couple of resistors. One of the common mistakes in using the voltage division rule is to use the formula for resistors which are in parallel with other elements.

Example of the voltage divider rule. R a 6ω r b 8ω. The formula for calculating the output voltage is based on ohms law and is shown below. For example the voltage division rule cannot be used in the following circuit directly.

By using the following equation we can find the output voltage. Voltage dividing components. In electronics a voltage divider also known as a potential divider is a passive linear circuit that produces an output voltage v out that is a fraction of its input voltage v in. The voltage divider formula is given by where v out is the output voltage.

V in is the input voltage. Consider two resistors 10ω and 20ω are connected in a parallel with a voltage source of 50 v. A simple example of a voltage divider is two resistors connected in series with the input voltage applied. It is generally formed using two resistors and a voltage source.

It will be incorrect if one tries to find using voltage divider by neglecting the other resistor as so. Voltage dividers are one of the most fundamental circuits in electronics. Example of using voltage divider formula. Find out the magnitude of total current and the current flowing through each resistor in the parallel circuit.

Current divider for 2 resistors in parallel with voltage source example 2. A voltage divider is a fundamental circuit used in the field of electronics. If learning ohm s law was like being introduced to the abc s learning about voltage dividers would be like learning how to spell cat. The voltage divider rule equation accepts when you know the three values in the above circuit they are input voltage and the two resistor values.

It can produce a portion of its input voltage as an output. Voltage division is the result of distributing the input voltage among the components of the divider. R a and r b are the resistors. Using this formula we can re analyze the example circuit s voltage drops in fewer steps.