How do I find the percentage error in the equivalent resistance when the two resistors with values R1= (6+_0.3) and R2= (10+_0.2) are connected in parallel?

Answer 1

There is an upper and a lower limit to the equivalent resistance of your resistors. If both are as large as possible, 6.3 and 10.2 ohms, then your equivalent resistance will be maximum and is ~3.89 ohms. On the other hand, if they are both as small as possible, so 5.7 and 9.8 ohms, then your equivalent resistance is smallest and is ~3.6 ohms. Therefore, your equivalent resistance is approximately 3.75(+/- 0.15) ohms.