Kirchhoff's First Law

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Physics
EmmyBen
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EmmyBen
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Kirchhoff's First Law
  1. The sum of the currents entering any junction is always equal to the sum of the currents leaving the junction.
    1. If they don't add up: ammeters may have bit of resistance, rounding errors
    2. Electron flow: negative to positive Conventional current: positive to negative
      1. Conventional - incorrect
      2. Measuring current: flow of electrons
        1. Voltage = resistance x current
          1. Higher the resistance, smaller the current
            1. Adding ammeter changes resistance - changes current
              1. Ideal ammeter has 0 resistance
                1. Ammeters added in series
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