Filament light globe current

  • Thread starter cseet
  • Start date
  • #1
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Hi there,

can anyone pls explain why
1. the current through a filament light globe is greater in the first few milliseconds after it is turned on before it reaches it's "steady" glow?

2. is it better to have headlights in a motos vehicle connected in parallel rather than in series?

greatly appreciated!
Cseet
 

Answers and Replies

  • #2
Integral
Staff Emeritus
Science Advisor
Gold Member
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1. filliment resistance is temperature depentent.

2. In series one goes out both go out. In parallel they go out one at a time.


You do realize we have a homework help forum?
 
  • #3
Michael D. Sewell
The resistance of an electrical conductor varies with it's temperature.

Wired in series, if one headlight failed, the current would no longer be conducted to the other headlight.
 
  • #4
40
0


Hi there,

thanks for your help.

I now realised that there's a homework help section... I'm new to this forum. thanks again
cseet
 

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