Voltage Divider Formula

Voltage Divider Formula

It will output a portion of the input voltage. Usually, a voltage source, two resistors, and a resistor are used to create it. The resistors are linked together in series. And these two resistors are crossed by the voltage. It is referred to as a possible divider. We will discuss the Voltage Divider Formula with an example in this article.

The notes and solutions for the Voltage Divider Formula are also made available in Hindi for students of various other boards. Comprehension of the Voltage Divider Formula is made easier with the help of these notes, thanks to Extramarks experts. The notes and solutions based on the Voltage Divider Formula have been prepared in accordance with the NCERT Syllabus, emulating the structure of the NCERT books.

Voltage Divider Formula

The series of resistors or capacitors known as a voltage divider can be tapped at any point in the middle to produce a particular percentage of the voltage applied between its ends.

It is made up of an electric circuit with two resistors and a single source of input voltage. A simple voltage divider has two resistors wired in series in a circuit. The voltage divider’s output voltage is dependent on its input voltage. This circuit aids in determining how the input voltage is distributed among the circuit’s parts.

The Voltage Divider Formula notes and solutions have been carefully selected by Extramarks experts after careful consideration and research on previous years’ test questions. Students will be better able to understand situations like the one above thanks to the notes and solutions based on the Voltage Divider Formula. Notes and solutions for the Voltage Divider Formula are very student-friendly, dynamic, diverse, and varied in nature. The notes are updated in accordance with the CBSE NCERT curriculum and are relevant to the NCERT books’ organisational structure, according to experts. Some of Extramarks’ most adept translators have put together the Voltage Divider Formula notes and solutions in Hindi.

What is the division of voltage in a circuit?

The resistors or other elements of the voltage divider circuit divide the input voltage. The voltage division occurs as a result. The voltage divider calculator can be used if we need assistance with the voltage division calculation.

A voltage divider is formally a straightforward circuit that divides a large voltage into two smaller ones. We can produce an output voltage that is only a small portion of the input voltage by using just two series resistors and the input voltage. One of the frequently used circuits in electronics is the voltage divider. Therefore, learning Ohm’s law can be compared to learning the circuit alphabets, and learning about voltage dividers can be compared to learning how to form words.

The formula for Voltage Divider

A voltage divider is a set of resistors or capacitors that can be tapped at any point in the middle to create a specific proportion of the voltage applied between its ends.

It consists of a single source of input voltage, two resistors, and an electrical circuit. Suppose an illustration that shows a straightforward voltage divider. In the circuit, two resistors are connected in series. The input voltage to the voltage divider affects its output voltage. Using this circuit, one can figure out how the input voltage is split up among the circuit’s components.

A voltage is being applied across a series of two resistors by a voltage divider. Although we may draw in a variety of ways, the circuit should always essentially be the same.

Thus, formula is given as follows:

V out=(Rb/Ra+Rb)×Vin


V out=Output Voltage

V in=Input Voltage

R a=Input Registor

R b=Output Registor

Voltage dividers have a wide range of uses, making them one of the most popular circuits used by electrical engineers. There are many applications. Potentiometers, reading resistive sensors, level shifting, etc. are a few examples.

Solved Examples on Voltage Divider

Q.1: Find out the output voltage of the voltage divider circuit whose two registers are 6ω and 8ω  respectively and the input voltage is 20V. Where 8 ω is in parallel to the output voltage.





Now, applying the Voltage divider formula,


Substituting the known values,


= 814×20

=  807


Therefore, output voltage will be 11.43 V.

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