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ankoles [38]
3 years ago
12

Two electronics students are discussing static electricity and electric current. Student A says that a basic property of static

electricity is the fact that it can't be detected. Student B says that an electric current results when electrons move in a conductor. Which of the following statements is correct? A. Neither of the two students is correct. B. Only Student A is correct. C. Both of the students are correct. D. Only Student B is correct.
Computers and Technology
1 answer:
Svet_ta [14]3 years ago
3 0
The answer is D. Only student B is correct. Student A is incorrect because static electricity can be detected through the principle of electrostatic induction, which will indicate if there are static electricity on the surface of an object. A device which can detect static electricity is an electroscope. Moreover, for student B, it is correct that the cause for electric current to flow is the uniform flow of free electrons.
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You want to divide the value in cell D3 by the value in cell E3. Which formula should you use?
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¿Cómo es la onda percibida por un osciloscopio cuando hablamos de sonido? ¿Qué parámetros podemos observar en ella?
frozen [14]

Answer:

Las ondas de sonido, que es una onda longitudinal, son producidas por la vibración de un objeto de tal manera que (la onda de sonido requiere un medio de viaje, líquido sólido o gas) la dirección del sonido es la misma que la dirección de la vibración y como la el ancho de la vibración (hacia adelante y hacia atrás) aumenta, la amplitud de la vibración aumenta y el sonido es más fuerte

Un micrófono conectado al osciloscopio recoge el medio de aire vibrante de la onda de sonido de la energía de la onda de sonido y lo convierte (produce) señales eléctricas y electrónicas. El osciloscopio, que está diseñado para mostrar señales electrónicas, muestra las señales electrónicas transmitidas por el micrófono en la pantalla con los mismos valores de amplitud y frecuencia que el volumen y el tono de la onda de sonido, respectivamente.

Las características observables son;

1) El volumen o el volumen de la onda de sonido que se muestra como la amplitud) en el cátodo, con una amplitud más alta que representa un sonido más fuerte

2) El tono de la onda de sonido se muestra como el espaciado de onda en el osciloscopio, el sonido de tono más alto se muestra por las ondas que se acercan en la pantalla

Explanation:

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Fynjy0 [20]

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batch sequence check.

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