A 60W lamp and a 120W lamp

  • #1
A 60W lamp and a 120W lamp each have a potential difference of 120V across their terminals.

a) What is the current through each lamp?

I think you use the formula I = P/V and so:

Lamp #1 = I = 60/120 and Lamp #2 = I = 120/120

But I don't know if that is right?

Thank you so much for the help!
 

Answers and Replies

  • #2
Hesch
Gold Member
922
153
But I don't know if that is right?
It's absolutely correct.

( Generally: Remember units. If they don't match, you have made an error ).
 
  • #3
It's absolutely correct.

( Generally: Remember units. If they don't match, you have made an error ).
Ok, thank you!
 

Related Threads on A 60W lamp and a 120W lamp

Replies
4
Views
5K
  • Last Post
Replies
4
Views
663
  • Last Post
Replies
1
Views
5K
Replies
10
Views
51K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
3
Views
2K
Replies
11
Views
1K
  • Last Post
Replies
2
Views
4K
  • Last Post
Replies
9
Views
7K
  • Last Post
Replies
1
Views
6K
Top