# Did i add up these Ressitors right?

1. Oct 27, 2005

### mr_coffee

Hello everyone, i'm suppose to find the current and potential difference, I did a smilar problem to this that Chi helped me on, and it worked out, i applied the same method but didn't work out right. Here is the question and under it is my work:

Question:
the ammeter and voltmeter resistances are 2.00 and 268 , respectively. Take E= 12.0 V for the ideal battery and R0 = 119 .

Picutre of Figure b: http://www.webassign.net/hrw/28-40b.gif

(a) If R = 93.0 what will the meters read for the two different connections (Figs. 28-40b)?
Figure B:

I = ?A
Potential Difference = ? V
work:
http://img463.imageshack.us/img463/111/lastscan8fp.jpg [Broken]

Thanks!

Last edited by a moderator: May 2, 2017
2. Oct 28, 2005

### daniel_i_l

I only see one connection which is the one in our drawing. anyway, it looks like you pretty much solved it! You know the total I so you just have to find how much of it goes through the R and A (call that I1), and how much goes through V (I2, I1+I2 = I, remember that the I and resistance are inversly related). I1 would be the reading for the ammeter, and I1 times the total resistance of A and R is the reading for the voltmeter.

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook