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Physics LibreTexts

3: Direct Current Circuits

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  • 3.1: Moving Charge
    We begin with some mathematical tools for dealing with moving charge, keeping in mind the observed physical law that charge is neither created nor destroyed.
  • 3.2: Resistance and Energy Dissipation
    We now discard our assumption from electrostatics that conductors allow totally free (instantaneous) movement of electric charge, and take into account the effects of "electrical friction."
  • 3.3: Networks of Batteries and Resistors
    We can employ analysis similar to what we used in static circuits to circuits that contain electric current passing through resistors, though it requires a twist to the notion of potential difference used in the static case.
  • 3.4: Kirchhoff's Rules
    Not every conceivable circuit can be analyzed using the tools of the previous section. Here we learn some tools that can be used in more general cases.
  • 3.5: RC Circuits
    Up to now, we have only considered the role of capacitors under static circumstances. We now incorporate them into our moving-charge networks.


This page titled 3: Direct Current Circuits is shared under a CC BY-SA 4.0 license and was authored, remixed, and/or curated by Tom Weideman directly on the LibreTexts platform.

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