Podcast
Questions and Answers
Which type of ballast is commonly used in fluorescent lamps to limit the current through the tube?
Which type of ballast is commonly used in fluorescent lamps to limit the current through the tube?
What is the purpose of an electrical ballast?
What is the purpose of an electrical ballast?
Which type of ballast is used in compact fluorescent lamps (CFLs) and high-intensity discharge lamps (HID lamps)?
Which type of ballast is used in compact fluorescent lamps (CFLs) and high-intensity discharge lamps (HID lamps)?
Why is an electrical ballast necessary in fluorescent lamps?
Why is an electrical ballast necessary in fluorescent lamps?
Signup and view all the answers
What happens to the terminal voltage of a load when current through the load increases?
What happens to the terminal voltage of a load when current through the load increases?
Signup and view all the answers
Which type of lamp uses fluorescence to produce visible light?
Which type of lamp uses fluorescence to produce visible light?
Signup and view all the answers
What is the typical luminous efficacy of fluorescent lighting systems?
What is the typical luminous efficacy of fluorescent lighting systems?
Signup and view all the answers
Why are fluorescent lamp fixtures more costly than incandescent lamps?
Why are fluorescent lamp fixtures more costly than incandescent lamps?
Signup and view all the answers
What is the luminous efficacy of an incandescent bulb?
What is the luminous efficacy of an incandescent bulb?
Signup and view all the answers
What type of light does a fluorescent lamp produce to excite the phosphor coating?
What type of light does a fluorescent lamp produce to excite the phosphor coating?
Signup and view all the answers
