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Simplified form of Voltage Formula

  1. Mar 24, 2013 #1
    In my book it gives the relationship between voltage and electric field as Vb-Va= -[itex]\int _a^{b}[/itex] E dl which for a positively charged conducting sphere Q simplifies to [itex]\frac{Q}{4\pi\epsilon_0} (\frac{1}{b}-\frac{1}{a})[/itex] my questions is that shouldn't it be [itex]\frac{Q}{4\pi\epsilon_0} (\frac{1}{a}-\frac{1}{b})[/itex]? The integral turns into [itex]\int _b^{a}[/itex] what am I missing here?
  2. jcsd
  3. Mar 24, 2013 #2
    Nvmind I got it I feel stupid lol
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