# Thread: Physics - Circuit Analysis

1. ## Physics - Circuit Analysis

Hi MHF

Find the value of r2 in the voltage divider, which would give an output voltage of 2.0v

Vin=6.0v
R1=3.0 (resistor)
R2=?
Vout=2.0v

the two resistors are in a line and the out voltage is take from r2

2. Originally Posted by iFuuZe
Hi MHF

Find the value of r2 in the voltage divider, which would give an output voltage of 2.0v

Vin=6.0v
R1=3.0 (resistor)
R2=?
Vout=2.0v

the two resistors are in a line and the out voltage is take from r2
Substitute into the voltage divider formula you will undoubtedly have in your class notes or textbook. If you need more help, please show your work and say where you get stuck.

3. Actually with the given information, it's impossible to get the answer, for there are infinite possibilities.

4. Originally Posted by Unknown008
Actually with the given information, it's impossible to get the answer, for there are infinite possibilities.
Not so. There is one answer, easily found by substituting the given data into the voltage divider formula and solving the resulting equation.

5. Maybe I'm misunderstanding the question then... ok. Thanks!

I think I found out what I thought it was. I thought it was like in the first diagram, where there are no solution, but there is in the second.

6. Originally Posted by Unknown008
Maybe I'm misunderstanding the question then... ok. Thanks!

I think I found out what I thought it was. I thought it was like in the first diagram, where there are no solution, but there is in the second.

A key phrase in the OP was "voltage divider".