Potential Divider Circuit

  • #1
Muhammad Danish
70
7

Homework Statement


upload_2018-5-18_22-49-21.png


Homework Equations




The Attempt at a Solution


When we will move the contact X towards P, the potential difference should be maximum across the potential divider. I work out A as my answer but I think it is wrong.
 

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Answers and Replies

  • #2
cnh1995
Homework Helper
Gold Member
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I work out A as my answer but I think it is wrong.
Yes, that is incorrect.
When we will move the contact X towards P, the potential difference should be maximum across the potential divider.
True, but how does this affect the bulbs? What is the potential difference across lamp 1 when you connect X to P?
 
  • #3
Muhammad Danish
70
7
Yes, that is incorrect.

True, but how does this affect the bulbs? What is the potential difference across lamp 1 when you connect X to P?
This is where my confusion is..
 
  • #5
CWatters
Science Advisor
Homework Helper
Gold Member
10,545
2,317
Let's say the battery is 12v.
What is the voltage at node P?
What is the voltage on the slider X when it's at P?
What is the voltage on each side of lamp 1?
What is the difference between each side of lamp 1?
 

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