# voltage divider rule application

#### christw16

Joined May 31, 2018
21

#### ericgibbs

Joined Jan 29, 2010
12,465
hi chris,
Is this a college assignment.?
If so, I can move it to Homework.
E

#### christw16

Joined May 31, 2018
21
hi chris,
Is this a college assignment.?
If so, I can move it to Homework.
E
Okay thank you for helping me~

#### MrAl

Joined Jun 17, 2014
8,140
According to voltage divider rule: V L = RL*VS /( RL +RS ) the formula in the picture

1. Are the results identical using 1k Ohms and 100 Ohms as RL? Why?
2. I am wonder that can I use this method to measure the Rs of the microphone or the power supply or the batteries?
if can , how to implement it

thank you

View attachment 160521
Hello,

Well did you try to calculate VL using your formula?
The formula looks right, so all you have to do is calculate once with 1k and a second time with 100 ohms.
Try that and then see if you can answer question #1.

#### crutschow

Joined Mar 14, 2008
26,991
Are the results identical using 1k Ohms and 100 Ohms as RL? Why?
What does the equation tell you?

#### christw16

Joined May 31, 2018
21
Hello,

Well did you try to calculate VL using your formula?
The formula looks right, so all you have to do is calculate once with 1k and a second time with 100 ohms.
Try that and then see if you can answer question #1.
thank you for replying me, my answer is by the formula , the result is identical
is that right?

And I have no idea to solve second question

#### WBahn

Joined Mar 31, 2012
26,398
thank you for replying me, my answer is by the formula , the result is identical
is that right?

And I have no idea to solve second question