Question

A 1,000 ohm resistor has a tolerance of 20%. This means that the resistor actual value can be +-20%. What's the acceptable range of values for this resistor ​

Answer 1

[800, 1200]

Explanation:

We need to calculate the acceptable range of values for this resistor. The center point would be the nominal resistance: 1000 ohms.

20% above that would be 1.20(1000 ohms) = 1200 ohms, and 20% below would be (0.80)(1000 ohms) = 800 ohms.

Thus, the acceptable resistance range in ohms is [800, 1200]