# Wheatstone Bridge Question

Discussion in 'Homework Help' started by Ivano, Mar 15, 2009.

1. ### Ivano Thread Starter Member

Feb 2, 2009
10
0
HI...

i'm not being able to understand where does this formula come from:

legend
Vo= OUTPUT or revelation voltage of the bridge
E = supply voltage
x= unknow resistance
a, b, c = left resistors (a next to b ; c next to x )......

...it should come from the voltage divider but cannot see how...

Vo= (Ex/x+c)-(Ea/a+b) = [(x/x+c)-(a/a+b)]E

..hope someone is gonna help me

Last edited: Mar 15, 2009
2. ### hgmjr Moderator

Jan 28, 2005
9,030
214
Greetings Ivano,

For this reason, I have moved your request to its own thread so that it will receive the attention it deserves.

hgmjr

Mar 27, 2008
159
0
4. ### Ivano Thread Starter Member

Feb 2, 2009
10
0
Thank you both

..you're right hgmjr , i'm sorry..iìll try to pay more attenction next

silvrstring..i saw it was actually easy,..but i panic sometimes and i seem to fall in a black hole..

THANK you guys Ivano