- #1
Jahnavi
- 848
- 102
Homework Statement
Homework Equations
The Attempt at a Solution
This looks to be a simple problem but the answer key has left me wondering whether I am thinking correctly .
I get option 1) whereas answer key states option 3) .
Since the variable resistance R increases , the resistance across the parallel branch (R2+R) increases .This leads to a higher voltage drop across R1 .As a result current increases in R1 .
Since the overall current from the battery decreases and current through R1 increases , current through R2 decreases .
I am getting option 1) . Is that right ?