Question

Consider a resistor chosen at random from a batch with a nominal value 1000 W and tolerance 5%. What could be its actual value range?
1. Between 900 W and 1000 W
2. Between 950 W and 1050 W
3. Between 900 W and 1050 W
4. Between 950 W and 1000 W

Answer 1

Correct Answer - Option 2 : Between 950 W and 1050 W

Calculation:

The nominal value is 1000 W.

Tolerance is 5 %.

So actual value range will vary from -5 % to +5 % of nominal value.

Low Range = 95 % of 1000 = 950 W

High Range = 105 % of 1000 = 1050 W

Hence option (2) is the correct answer.