Simple circuit question

  • #1

Homework Statement


Can someone why the voltage ##V^-## is the same voltage as that of R2?

https://www.physicsforums.com/attachments/circuit-png.92144/ [Broken]

Homework Equations


-

The Attempt at a Solution


is it an application of KVL concerning the voltage for R1 and ##V^-##
 
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Answers and Replies

  • #2
gneill
Mentor
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According to your image V- is directly connected to the top of R2. So they must have the same potential with respect to the reference node (ground).
 

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