A 9.00 V storage battery is connected to three resistors, 4.25 Ω, 11.0 Ω, and 21.0 Ω, respec-tively. The resistors are joined in series.
Calculate the equivalent resistance.
For resistors in series,
R = R1+R2+R3
For parallel resistors,
1/R = 1/R1 + 1/R2 + 1/R3
To calculate the equivalent resistance in a series circuit, you need to sum up the individual resistances. In this case, you have three resistors with resistances of 4.25 Ω, 11.0 Ω, and 21.0 Ω, respectively.
To find the equivalent resistance, simply add the values of the resistances together:
Equivalent Resistance = 4.25 Ω + 11.0 Ω + 21.0 Ω
So, the equivalent resistance is:
Equivalent Resistance = 4.25 Ω + 11.0 Ω + 21.0 Ω
= 36.25 Ω