asked by
Which of the following is a low efficient light source? 

A) CFL B) HPSV Lamp C) LPMV Lamp D) Tungsten Lamp

Please log in or register to answer this question.

Welcome to Q&A site for electrical and electronics engineering discussion for diploma, B.E./B.Tech, M.E./M.Tech, & PhD study.
If you have a new question please ask in English.
If you want to help this community answer these questions.