Concepto De Corriente Eléctrica

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Concepto De Corriente Eléctrica - Quiz

Intensidad de corriente y Circuito eléctrico


Questions and Answers
  • 1. 

    La unidad del Sistema Internacional de la intensidad de corriente ________, y se simboliza con una ________.

    Explanation
    The unit of measurement for electric current in the International System of Units is called the amperio, and it is represented by the symbol A.

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  • 2. 

    En una corriente continua las cargas eléctricas se desplazan siempre en el mismo sentido.

    • A. 

      True

    • B. 

      False

    Correct Answer
    A. True
    Explanation
    En una corriente continua, las cargas eléctricas se desplazan siempre en el mismo sentido. Esto significa que las partículas cargadas, como los electrones, se mueven en una dirección constante a través de un circuito. A diferencia de la corriente alterna, donde las cargas cambian constantemente de dirección, en una corriente continua las cargas fluyen en una sola dirección. Esto es fundamental para el funcionamiento de muchos dispositivos electrónicos y sistemas de energía. Por lo tanto, la afirmación de que en una corriente continua las cargas eléctricas se desplazan siempre en el mismo sentido es verdadera.

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  • 3. 

    En un circuito eléctrico, ¿qué elemento es capaz de abrir y cerrar el circuito?

    • A. 

      Generador

    • B. 

      Receptor

    • C. 

      Interruptor

    • D. 

      Conductor

    Correct Answer
    C. Interruptor
    Explanation
    An interruptor is a device that can open and close an electrical circuit. It is used to control the flow of electricity by interrupting or allowing the passage of current. When the interruptor is closed, it completes the circuit and allows electricity to flow. When it is open, it breaks the circuit and stops the flow of electricity. This ability to open and close the circuit makes the interruptor a crucial component in controlling the flow of electricity in a circuit.

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  • 4. 

    Calcula la intensidad de corriente eléctrica sabiendo que se han empleado 8 minutos para transportar 960C.

    • A. 

      4 Amperio

    • B. 

      2 Coulombios

    • C. 

      2 Amperios

    • D. 

      8 Segundos

    Correct Answer
    C. 2 Amperios
    Explanation
    The correct answer is 2 Amperios. The question asks to calculate the electric current intensity knowing that 960C (Coulombs) were transported in 8 minutes. The formula to calculate electric current is I = Q/t, where I is the current, Q is the charge, and t is the time. By substituting the given values, we get I = 960C / 8 minutes = 120C/minute. However, the answer choices are given in Amperios, so we need to convert the units. 1 Ampere is equal to 1 Coulomb per second. Therefore, 120C/minute is equal to 120C/60 seconds = 2 Amperios.

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  • 5. 

    Por un conductor circula una corriente de 1 mA. Teniendo en cuenta que un coulombio equivale a 6,25·10^18 electrones, calcula cuántos electrones pasan en un segundo por una sección de conductor.

    • A. 

      6,25·10^15 electrones

    • B. 

      6,25·10^18 coulombios

    • C. 

      6,25·10^3 amperios

    Correct Answer
    A. 6,25·10^15 electrones
    Explanation
    The correct answer is 6,25·10^15 electrones. This is because we know that 1 coulombio is equal to 6,25·10^18 electrones. Since we have a current of 1 mA (0.001 amperios), we can calculate the number of electrones passing through the conductor in one second by multiplying the current (0.001 amperios) by the number of electrones in one coulombio (6,25·10^18 electrones). The result is 6,25·10^15 electrones passing through the conductor in one second.

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