Chapter 2

CHAPTER 2: "Series and Parallel Resistors"

 We are now on the second chapter of our lesson, the series and parallel resistors. You may find our article to be shorter than the first one because there were class interruptions this week and we only had 2 meetings, the other one was for our Laboratory. 

So without further adieu, let's start.

What is a SERIES RESISTOR? 

A resistor is said to be in a Series connection if the amount of current flowing through all the resistors is the same. 

  

*This is an example of a Series diagram*

                   Formulas involving series resistors                          

• V1 = iR1 & V2 = iR2

     Kirchoff's Voltage Law

• V - V - V2 = 0

• V = i ( R1 + R2)

• i = V / R1 + R2   = V / REQ

• Req = R1 + R2

What is a PARALLEL RESISTOR?

A resistor is in a Parallel connection if they posses a common voltage across their terminals and other connected elements.

• (i = i1 + i2)  = (V / R1 + V / R2) = (V { 1 / R1 = 1 / R2 }) = V / REQ

• V = i REQ

• 1 / REQ = ( 1/ R1 + 1/ R2)

• REQ = R1R2 / (R1+R2).