1. Nov 12, 2006

### pavel987

In wheatstone bridge , if B an D are two points and if potential difference of B is greater than D,How current will flow?
If possible you can draw a diagram and explain me how current will flow(send pdf or doc).It will be very helpful for me.

Last edited by a moderator: Nov 12, 2006
2. Nov 12, 2006

### nrqed

First, it does not make sense to talk about the potential difference at one point. One may only define the potential at one point and the potential difference between points. If you mean that the potential at B is greater than at D, then positive charges released at rest at B would move toward B and vice versa for negative charges. Since the current is defined in terms of the flow of positive charges (even though it's actually electrons which are moving), the current flows from points of higher potential to points of lower potential.

Last edited: Nov 12, 2006
3. Nov 12, 2006

### FredGarvin

It also helps to know what resistors you are labelling as B and D.

4. Nov 12, 2006

### Gokul43201

Staff Emeritus