This video shows how to voltage division in a circuit. Voltage division is a circuit analysis technique used to find the voltage dropped across a resistor that is in a series circuit with other resistor. In order to find the voltage across a specific resistor in a set of series resistors, form a proportion between that resist and the sum of resistors. Multiply the result of the proportion by the source voltage supply.
Example: If there are two resistors (10 ohm and 5 ohm) in series with a 6V voltage source the voltage seen across the 10 ohm resistor can be found by dividing 6V*(10/15) = 4V.
If you do not understand how to find 4V in the above example, watch the video above.
Note: This video came from the January 2013 Certified Electronic Technician Exam Prep. Bootcamp held on the campus of Georgia Tech by Dr. Clyde A. Lettsome, PhD, PE, MEM. This course is offered every January and June.