Notices
Results 1 to 5 of 5

Thread: Dependent and Independent Variables.

  1. #1 Dependent and Independent Variables. 
    Forum Freshman
    Join Date
    Mar 2010
    Location
    South Africa
    Posts
    7
    It is a well known fact that independent variable is always in horizontal (x-axis) when ploting a graph.

    But in an experiment to verify the relationship between the current(I) and potential difference (V) using various numbers of 1.5v batteries, current is usually on the x axis.


    Reply With Quote  
     

  2.  
     

  3. #2  
    Moderator Moderator AlexP's Avatar
    Join Date
    Jul 2006
    Location
    NY
    Posts
    1,838
    Do you have a question or a discussion point?


    "There is a kind of lazy pleasure in useless and out-of-the-way erudition." -Jorge Luis Borges
    Reply With Quote  
     

  4. #3  
    Forum Freshman
    Join Date
    Mar 2010
    Location
    South Africa
    Posts
    7
    The Potential difference is the independent variable since it value determines the current passing through the wire.

    Why is p.d (V) NOT on the x axis.
    Reply With Quote  
     

  5. #4  
    Reptile Dysfunction drowsy turtle's Avatar
    Join Date
    Mar 2009
    Location
    UK
    Posts
    2,255
    Independant variable: something that only changes when you deliberately change it.

    Dependant variable: one which is changed as well when you deliberately change another variable.


    If you are changing the magnitude of the current, the the voltage is dependant on the current.
    "The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair." ~ Douglas Adams
    Reply With Quote  
     

  6. #5  
    Forum Freshman
    Join Date
    Mar 2010
    Location
    South Africa
    Posts
    7
    How can the magnitude of current be changed without changing the p.d first?
    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •