By dividing the ________rating of a lamp by the watts rating, a value called the efficacy of the lamp is determined.
A) volt
B) lumen
C) ampere
D) color

Question

Quizplus · Accepted Answer

Efficacy of a lamp is determined by dividing the lumen rating (light output) by the watts rating (power consumption), measuring how efficiently a lamp converts electrical power into visible light.

By Dividing the ________Rating of a Lamp by the Watts