Question

using a multimeter with hold capabilities, you see that the startup current for the saw is 12 a. you look at the breaker and note that its rated for 20 a (peak). if the peak current of the shop light is 2.828 a, how many shop lights can be running when the saw is started?

Explanation:

Step1: Calculate available current for shop lights

The breaker is rated for 20 A (peak) and the saw's startup current is 12 A. So the available current for shop lights is \(20 - 12=8\) A.

Step2: Calculate number of shop lights

The peak current of one shop light is 2.828 A. Let \(n\) be the number of shop lights. We use the formula \(n=\frac{\text{Available Current}}{\text{Current per Shop Light}}\). So \(n = \frac{8}{2.828}\approx2.83\). Since we can't have a fraction of a light, we take the integer part.

Answer:

2