# Simple Potential Divider Circuit - Need help with voltages

Discussion in 'Electronics Homework Help' started by ElectStudent, Apr 25, 2014.

1. ### ElectStudent

13
0
Apr 8, 2014
Please see the diagram i have attached.
What will be the voltages across the resistors?
what effect does the 1.5V voltage supply have on the voltage across the resistors?

V(midpoint between R1 and R2) = 7.5V, so does that mean V(r2) = 7.5?

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2. ### Laplace

1,252
184
Apr 4, 2010
The 9V divides between R1 & R2. However, the measured voltages referenced to ground are offset by 1.5V.

3. ### ElectStudent

13
0
Apr 8, 2014
Thank you, so does that mean the 1.5V supply has no effect on the circuit apart from when measuring voltages?

4. ### Laplace

1,252
184
Apr 4, 2010
Does any current flow through the 1.5V source? If so, what path does the current follow?

5. ### ElectStudent

13
0
Apr 8, 2014
Oh i see, no current flows into the 1.5V source, so it has no effect. Thanks a lot for your help.  