Skip to main content
Library homepage
 

Text Color

Text Size

 

Margin Size

 

Font Type

Enable Dyslexic Font
Physics LibreTexts

11: Chapter 11

( \newcommand{\kernel}{\mathrm{null}\,}\)

  • 11.1: Prelude to Direct-Current Circuits
    An amplifier circuit takes a small-amplitude signal and amplifies it to power the speakers in earbuds. Although the circuit looks complex, it actually consists of a set of series, parallel, and series-parallel circuits.
  • 11.2: Electromotive Force
    All voltage sources have two fundamental parts: a source of electrical energy that has a electromotive force (emf) and an internal resistance r. The emf is the work done per charge to keep the potential difference of a source constant. The emf is equal to the potential difference across the terminals when no current is flowing. The internal resistance r of a voltage source affects the output voltage when a current flows. The voltage output of a device is called its terminal voltage.
  • 11.3: Resistors in Series and Parallel
    Basically, a resistor limits the flow of charge in a circuit and is an ohmic device where V=IR. Most circuits have more than one resistor. If several resistors are connected together and connected to a battery, the current supplied by the battery depends on the equivalent resistance of the circuit.


11: Chapter 11 is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

Support Center

How can we help?