For the resistor shown below, find the tolerance in ohms, Ω.
A) 56.5 Ω
B) 49.5 Ω
C) 46 Ω
D) 66 Ω
E) 61 Ω

Question

For the resistor shown below, find the tolerance in ohms, Ω. 
A) 56.5 Ω 
B) 49.5 Ω 
C) 46 Ω 
D) 66 Ω 
E) 61 Ω

Quizplus · Accepted Answer

The tolerance of a resistor is indicated by the fourth band, which is silver in this case. Silver represents a tolerance of +/- 10%. Using the color code chart, the first two bands are brown and green, which represent the digits 1 and 5, respectively. The third band is black, which represents a multiplier of 10^0 = 1. Thus, the resistance value is 15 x 1 = 15 ohms. The tolerance is then calculated as 10% of 15 ohms, or 1.5 ohms. Therefore, the tolerance in ohms is 1.5 ohms, and the closest option is 49.5 ohms (15 + 1.5 = 16.5, rounded to the nearest 0.5).

For the Resistor Shown Below, Find the Tolerance in Ohms