16 Questions
What is the purpose of the inert gas in an incandescent light bulb?
To protect the filament from oxidation
Why are incandescent bulbs widely used in household and commercial lighting despite their low efficiency?
Low manufacturing costs and compatibility with both AC and DC
What percentage of the energy consumed by incandescent bulbs is converted into visible light?
Less than 5%
What is the luminous efficacy of a typical incandescent bulb for 120 V operation?
16 lumens per watt (lm/W)
What provides mechanical support and electrical connections to the filament in an incandescent bulb?
Bulb socket
Why do incandescent bulbs not require external regulating equipment?
They work equally well on either AC or DC
What is the main reason for the phase-out of incandescent light bulbs by some governments?
High energy consumption
According to historians Robert Friedel and Paul Israel, what factors contributed to Thomas Edison's success with the incandescent lamp?
Effective incandescent material, higher vacuum, and centralized power distribution
Who was the inventor credited with the demonstration of a constant electric light at a public meeting in Dundee, Scotland in 1835?
James Bowman Lindsay
What type of lamps are used for industrial processes such as paint curing and space heating?
Quartz envelope halogen infrared heaters
Which material did Humphry Davy use to create an incandescent light in 1802?
Platinum
What was the main reason cited by historians for Thomas Edison's success with the incandescent lamp?
Development of an entire, integrated system of electric lighting
What was the main problem with the incandescent light created by Humphry Davy in 1802?
It was not bright enough
What did James Bowman Lindsay demonstrate at a public meeting in Dundee, Scotland in 1835?
'Constant electric light'
What was the main component in Thomas Edison's system of electric lighting?
'The lamp'
What did Ebenezer Kinnersley demonstrate in 1761?
Heating a wire to incandescence
Explore the key components and manufacturing process of incandescent light bulbs in this informative quiz. Learn about the wire filament, glass bulb, inert gas, and bulb socket used in these traditional electric lights.
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