catchadub catchadub
  • 14-06-2018
  • Physics
contestada

An incandescent bulb produces 520 lumens and has an efficacy of 13 lm/W.

What is the power of the bulb?

2.5 W
40 W
503 W
533 W

Respuesta :

AL2006
AL2006 AL2006
  • 15-06-2018

(520 lm) divided by (13 lm/W)

= (520 lm) times (W/13lm)

= (520/13) (lm · W / lm)

= 40 W
Answer Link
rheesahbris2003 rheesahbris2003
  • 21-04-2020

Answer:

40

Explanation:

just took the test

Answer Link

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