Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Electricity Question (Exam in 2 days) Halp!

  1. Nov 16, 2008 #1
    1. The problem statement, all variables and given/known data
    Potential Difference (V) 1.2 ------ 1.8 ----- 2.2 ----- 3.0 ----- 3.4 ----- 3.7 ----- 4.2 ----- 4.8
    Current (mA) ------ 140 ------ 210 ----- 256 ----- 350 ----- 410 ----- 430 ----- 490 ----- 560


    2. Relevant equations
    Use correct symbols draw a circuit diagram to show a simple experimental setup the students were likely to have used to have attained the data above.


    3. The attempt at a solution
    1. Finding the R will be 8.57 Ohm.

    I don't understand how you are meant to find the actual voltage and the current in just 1 circuit. I understand that the ohm for all the variables will be 8.57, but don't u need 8 different diagrams to illustrate it? Sorry, electricity isn't a strong topic of mine and would appreciate if someone explains to me what the table is actually saying.
     
    Last edited: Nov 16, 2008
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted