The Total Resistance $R$ Of Two Resistors $R_{1}$ And $R_{2}$ , Connected in Parallel, Is

Essay

The total resistance $R$ of two resistors $R_{1}$ and $R_{2}$ , connected in parallel, is $\frac{R_{1} R_{2}}{R_{1}+R_{2}}$ . $R_{1}$ measures $525 \Omega$ with a maximum error of $35 \Omega$ . $\mathrm{R}_{2}$ measures $375 \Omega$ with a maximum error of $24 \Omega$ . Use a differential to approximate the change in $\mathrm{R}$ to two significant digits.