Transformer bulb brightness

  • #1

Main Question or Discussion Point

The bulb connected to the input of a step-up transformer is less bright than a similiar bulb connected to its output. Why?
 

Answers and Replies

  • #2
vk6kro
Science Advisor
4,081
40
Because there is more voltage at the output of a step-up transformer than at the input.

Lamp brightness depends on supply voltage. It gets brighter as the voltage increases.
 
  • #3
1
0
I have a question regarding bulb brightness but it is not particularly scientific as it is fictional for a humorous short story I'm writing. The main character is fooling around with electricity when I huge power surge spike runs into his lab wiring. Would that explode the light bulbs or is there some kind of bulb, industrial strength, whatever, that could withstand a gigantic power surge spike and getting blinding bright for a second or so?

Thanx for your help. :)
 
  • #4
85
1
funops,

You better start a new thread.

I have seen a lot of times electronics equipment failiures attributed to high voltage surges by the vendor. I have never heared a bulb or light becoming victim of that surge.
 
  • #5
MATLABdude
Science Advisor
1,655
4
funops,

You better start a new thread.

I have seen a lot of times electronics equipment failiures attributed to high voltage surges by the vendor. I have never heared a bulb or light becoming victim of that surge.
I've seen 'country-rated' lightbulbs (manufactured by Philips, so I assume it's legit) that indicated they'd withstand the surges and sags seen after kilometers of transmission lines. However as a city-slicker, I have no idea of how serious of an issue this actually is.
 

Related Threads for: Transformer bulb brightness

  • Last Post
Replies
4
Views
983
  • Last Post
Replies
5
Views
2K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
4
Views
2K
Replies
1
Views
2K
  • Last Post
Replies
15
Views
852
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
5
Views
2K
Top