a 20.0 ohm and 60.0 ohm resistor are connected in series to a 9.00 v battery. what is their equivalent…

a 20.0 ohm and 60.0 ohm resistor are connected in series to a 9.00 v battery. what is their equivalent resistance? (unit = ohms)
Answer
Explanation:
Step1: Recall series - resistance formula
For resistors in series, the equivalent resistance $R_{eq}$ is the sum of individual resistances. The formula is $R_{eq}=R_1 + R_2$.
Step2: Substitute given values
Given $R_1 = 20.0\ \Omega$ and $R_2=60.0\ \Omega$. Then $R_{eq}=20.0\ \Omega+60.0\ \Omega$.
Step3: Calculate the result
$R_{eq}=80.0\ \Omega$.
Answer:
$80.0$