• Support PF! Buy your school textbooks, materials and every day products Here!

Series + Parallel

  • Thread starter dmolson
  • Start date
19
0
I know that this is going to sound like a stupid question, but I was wondering if someone could explain the reasoning behind this question.

A hanging lamp illuminates a banquet table using 6 light bulbs (120 V). How are the bulbs connected? Series or parallel?

Any help would be great.
 

Answers and Replies

19
0
I think that it would be parallel so that each light receives the same amount of current, but I am not really sure.
 
8
0
If they are in series that well each receive the same amount of current since they the current will pass through only one path, that includes all of the bulbs. However, in parallel, each bulb will have the full voltage from the source applied to it.
 
berkeman
Mentor
56,060
6,114
Thread moved to Homework Help forums. Please do not post homework or coursework in the general forums.

The traditional way that 120V light bulbs are wired is in parallel. Quiz question for the original poster (the OP, dmolson) -- why would you not want to connect all the light bulbs in your house in series?
 
8
0
A key factor in a series connection would have to do with a certain additive property of each load on the system.
 
133
0
Dmolson, normally any combination of lambs would be connected in parallel, there are two reasons for this:
first, the outlet of your home gives a constant 120V with varying current (depending on the load), so when you connect several lambs in parallel, you will have a constant voltage drop on all of them and they can take as much current as they want (there is a limit!!), while if you connected them in series, the voltage across the lambs will be divided among them, while having constant current which is not what we wnat, the second reason is that if you connect lambs in series, if one of them goes out, the one's following this lamb will go out too.
 
8
0
Electrified lambs are not, to the best of my knowledge, either tasty OR safely cooked... And it's kind of cruel and unusual to the lamb, isn't it! :biggrin:
 

Related Threads for: Series + Parallel

  • Last Post
Replies
6
Views
2K
  • Last Post
Replies
18
Views
3K
Replies
5
Views
15K
  • Last Post
Replies
15
Views
2K
  • Last Post
Replies
1
Views
4K
Replies
2
Views
5K
Replies
16
Views
2K
Replies
10
Views
1K
Top