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Homework Help: What are are the magnitude and direction

  1. Sep 22, 2009 #1
    1. The problem statement, all variables and given/known data
    The quantity called the electric field is a vector. The electric field inside a scientific instrument is = (215 - 380 ) V/m, where V/m stands for volts per meter. What are the magnitude and direction of the electric field?

    _____ v/m

    ______ degree (smallest positive angle from the positive x-axis)

    2. Relevant equations


    3. The attempt at a solution

    I don't know where to start
  2. jcsd
  3. Sep 23, 2009 #2


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    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi gbedenba! Welcome to PF! :smile:
    Do you mean that the x and y coordinates are 215 and -380? :confused:

    Use Pythagoras, and tangent. :wink:
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