192 Copyright Goodheart-Willcox Co., Inc. In this lab, you will calculate the tolerance according to the accuracy listed in the specifications for voltage, current, and resistance measurements Lab Introduction Tolerance is the span between the minimum and maximum values that are calculated by using the given accuracy formula. Therefore, the actual value of the number displayed can be anywhere between the range of the tolerance. The inductive clamp will be used to measure the current drawn by three parallel bulbs. Equipment • Safety glasses • Lab board • 14 AWG wire – green, white, black, or red • 3—60 to 100 W incandescent bulbs • 1—single-pole switch • 1—multimeter with inductive clamp • 1—resistor of any value Procedure 1. Wire the lab board per Figure 10.2-1. Fuse 15 A 2 × 4 Switch box Pictorial Diagram TP1 TP3 TP4 TP2 Bulb Bulb Bulb Goodheart-Willcox Publisher Figure 10.2-1. Lab 10.2 Measurement and Accuracy Continued