Electrical Power and Artificial Lighting Flashcards
1
Q
What did Benjamin Franklin discover in 1752?
A
Electricity
2
Q
What type of electricity was discovered in 1878?
A
Hydroelectric
3
Q
When is the UK aiming to reach net zero?
A
2050
4
Q
What was the first light that was invented in 1806 called?
A
The arc lamp
5
Q
What type of light superseded arc lamps?
A
Incandescent lamps
6
Q
What type of light is more commonly used now?
A
LED
7
Q
How does an arc lamp work?
A
An electric arc through a gas produces light
8
Q
how do incandescent lamps work?
A
A filament is heated white-hot by an electric current, producing light
9
Q
Why was fluorescent lighting not ideal?
A
Around 95% of energy they produced was heat and only 5% was light
