A 40 W linear fluorescent lamp that consumes 36 W, including the ballast and emits 3,400 lm. Determine the luminous efficacy. a.94.44 lm/W b.48.57 lm/W c.44.74 lm/W d.None of the above e.85 lm/W

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter25: Surge, Spike, And Lightning Protection
Section: Chapter Questions
Problem 4RQ: If a voltage spike lasts for 1.5 nanoseconds, what is the frequency of the spike?
icon
Related questions
Question
100%

A 40 W linear fluorescent lamp that consumes 36 W, including the ballast and emits 3,400 lm. Determine the luminous efficacy.

a.94.44 lm/W

b.48.57 lm/W

c.44.74 lm/W

d.None of the above

e.85 lm/W

Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Maximum power transfer theorem
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning