Question

Two resistor $R_1=\left(24\pm 0.5\right)\Omega$ and $R_2=\left(8\pm 0.3\right)\Omega$ are joined in series. The equivalent resistance is

• A. $32\pm 0.33\Omega$
• B. $32\pm 0.8\Omega$
• C. $32\pm 0.2\Omega$
• D. $32\pm 0.5\Omega$

Answer 1

Answer: (B)

$R_1=\left(24\pm 0.5\right)\Omega$

$R_2=\left(8\pm 0.3\right)\Omega$

$R_S=R_1+R_2=\left(32\pm 0.8\right)\Omega$