\[R_T=R_1+R_2\]
Variables
Rttotal series resistance (ohm)
R1resistance 1 (ohm)
R2resistance 2 (ohm)
Description
What is this formula?
This formula calculates the total resistance of two resistors connected in series.
When to use it
Use it when analyzing DC or AC circuits where resistors are connected sequentially in a single current path.
Example
Data:
R1 = 10 ohm
R2 = 15 ohm
Formula:
Rt = R1 + R2
Substitution:
Rt = 10 + 15
Result:
Rt = 25 ohm
Applications
Circuit analysis, electrical engineering, electronics, resistor networks, educational physics, and electrical design.