JoVE Logo
Autori
Contattaci

Accedi

Core - Physics

    Chapter 27

    Direct-Current Circuits

    27.1 : Electromotive Force01:02

    27.1 : Electromotive Force

    Electromotive force (emf) is the force that causes current to flow from a higher to a lower  potential. The term "electromotive ...

    4.4K views
    27.2 : Resistors In Series01:10

    27.2 : Resistors In Series

    A resistor is an ohmic device that limits the flow of charge in a circuit. Most circuits have more than one resistor. If several resistors are connected ...

    4.8K views
    27.3 : Resistors In Parallel01:23

    27.3 : Resistors In Parallel

    Resistors are in parallel when one end of all the resistors are connected to a continuous wire of negligible resistance and the other end of all the ...

    4.6K views
    27.4 : Combination Of Resistors01:18

    27.4 : Combination Of Resistors

    Electrical devices in any circuit can be connected either by series or parallel connections. Additionally, circuits can be connected involving both of ...

    2.6K views
    27.5 : Kirchhoff's Rules01:21

    27.5 : Kirchhoff's Rules

    Gustav Kirchhoff (1824–1887) devised two rules known as Kirchhoff's rules to analyze complex circuits, which cannot be analyzed with ...

    4.6K views
    27.6 : Kirchoff's Rules: Application01:22

    27.6 : Kirchoff's Rules: Application

    Kirchhoff's rules quantify the current flowing through a circuit and the voltage variations around the loop in a circuit. Applying Kirchhoff's ...

    1.4K views
    27.7 : DC Battery01:21

    27.7 : DC Battery

    A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts ...

    758 views
    27.8 : Multiple Voltage Sources01:25

    27.8 : Multiple Voltage Sources

    Generally, a single battery is not enough to power some devices. In such cases, batteries can be combined in two ways: in series or in parallel. In ...

    1.1K views
    27.9 : Galvanometer01:25

    27.9 : Galvanometer

    Common devices, including car instrument panels, battery chargers, and inexpensive electrical instruments, measure potential difference (voltage), ...

    2.1K views
    27.10 : Ammeter01:11

    27.10 : Ammeter

    An ammeter is a current measuring instrument. In the circuit, it is represented by the symbol A. The ammeter is placed in series with the device or ...

    2.1K views
    27.11 : Voltmeter01:18

    27.11 : Voltmeter

    A voltmeter is an electrical device that measures the potential difference or voltage between two points. It is connected in parallel with the circuit ...

    1.4K views
    27.12 : Potentiometer01:30

    27.12 : Potentiometer

    Voltage and current measurements using a standard voltmeter and ammeter alter the circuit being measured either by drawing or resisting the current flow, ...

    569 views
    27.13 : Wheatstone Bridge01:29

    27.13 : Wheatstone Bridge

    An ohmmeter is a resistance-measuring device. It works by applying a voltage to a resistor of unknown resistance and measuring the current across the ...

    450 views
    27.14 : Power Dissipated in a Circuit: Problem Solving01:15

    27.14 : Power Dissipated in a Circuit: Problem Solving

    The equivalent resistance of a combination of resistors depends on their values and how they are connected. The simplest combinations of resistors are ...

    1.1K views
    27.15 : RC Circuits: Charging A Capacitor01:30

    27.15 : RC Circuits: Charging A Capacitor

    A circuit containing resistance and capacitance is called an RC circuit. A capacitor is an electrical component that stores electric charge by storing ...

    3.5K views
    27.16 : RC Circuits: Discharging A Capacitor01:27

    27.16 : RC Circuits: Discharging A Capacitor

    One of the applications of an RC circuit is the relaxation oscillator. The relaxation oscillator comprises a voltage source, a capacitor, a resistor, and ...

    3.3K views
    27.17 : Applications of RC Circuits01:22

    27.17 : Applications of RC Circuits

    A relaxation oscillator is one of the applications of RC circuits. A neon lamp relaxation oscillator comprises a capacitor, a resistor, a voltage source, ...

    3.0K views
    27.18 : Household Wiring And Electrical Safety01:13

    27.18 : Household Wiring And Electrical Safety

    Companies that supply power to most modern households use three conductors, typically called a three-wire line. While one is neutral, the other two are ...

    1.1K views
    JoVE Logo

    Riservatezza

    Condizioni di utilizzo

    Politiche

    Contattaci

    SUGGERISCI JOVE ALLA BIBLIOTECA

    Newsletter di JoVE

    Ricerca

    Didattica

    Autori

    Personale delle biblioteche

    CHI SIAMO

    Copyright © 2025 MyJoVE Corporation. Tutti i diritti riservati

    Utilizziamo i cookies per migliorare la tua esperienza sul nostro sito web.

    Continuando a utilizzare il nostro sito web o cliccando “Continua”, accetti l'utilizzo dei cookies.

    Per saperne di più