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    How was this formula derived? (Electromagnetic)

    Oh sorry that I did not read through it. Thank you!
  2. P

    How was this formula derived? (Electromagnetic)

    How was the capacitance formula derived then?
  3. P

    How was this formula derived? (Electromagnetic)

    How was the capacitance formula derived then?
  4. P

    How was this formula derived? (Electromagnetic)

    I recently learned about Electric displacement field and capacitors, and I have a question that how was the formula derived shown below (blue circle part)? Thanks!
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