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

Current in a resistor

  • Thread starter swar0175
  • Start date
1
0
1. Homework Statement
The battery has negligible internal resistance
http://www.webassign.net/tipler/26-50.gif
Find the current in each resistor.
Find the power delivered by the battery.

2. Homework Equations
V=I/R
P=IV

3. The Attempt at a Solution
Now I feel like this problem is ridiculously simple, but cannot seem to get it right.
At first, I felt like all I needed to do was plug in the resistance and voltage of the battery, and that would give me the answer. But the resistors are in series/parallel with each other, and I know that affects the current but I'm not really sure how...

Thanks for the help I really appreciate it. I know this is a really simple problem I just can't seem to get it right...
 

Answers and Replies

gneill
Mentor
20,545
2,630
You'll have to find out how to combine series and parallel resistances before you go on. Then you should identify what's in series or parallel in the given circuit.

I suggest you first find the total equivalent resistance of the resistor network, and hence the current being delivered by the battery. After that, the things you need to determine will start to emerge/unravel from the circuit.
 

Related Threads for: Current in a resistor

  • Last Post
Replies
7
Views
946
  • Last Post
Replies
12
Views
3K
  • Last Post
Replies
14
Views
7K
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
2
Views
828
  • Last Post
Replies
4
Views
2K
Top