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Homework Help: Voltage across a resistor

  1. Mar 9, 2012 #1
    1. The problem statement, all variables and given/known data
    The voltage V(t) [in volts] across a resistor in an electrical circuit at a given time t [in seconds] is given by:

    sqrt of something to the power of pi

    ^ that's the example i got in my book. Its just got the square root symbol, a space, and then a pi in an exponential position.

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Mar 9, 2012 #2


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    Staff: Mentor

    power as a function of time: p(t)=v(t) · i(t)

    Ohm's Law: v(t)=R · i(t)

    The nearest matching your case that I can see is p(t) = (v(t))2 /R
    when rearranged to v(t) = ....

    No power of Pi. :uhh:
  4. Mar 9, 2012 #3
    Im very confused too. I thought i must have been missing something. Ill bring it up with the teacher.

    Thanks mate
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