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Zolol [24]
3 years ago
6

What causes the poles of the electromagnet in an audio speaker to repeatedly switch directions?

Computers and Technology
2 answers:
Sphinxa [80]3 years ago
8 0

Answer:

C. a current that rapidly switches direction

Explanation:

An audio speaker is an electronic device that converts electrical signals into sound energy (waves). The alternating current flowing into the audio speaker is typically used to generate sound waves.

Hence, what causes the poles of the electromagnet in an audio speaker to repeatedly switch directions is due to a current that rapidly switches direction. The electromagnet is placed in a position where it experiences a constant magnetic field as a result of the presence of a permanent magnet. Like every magnet, the electromagnet and the permanent magnet interact with each other; opposite sides attract while like sides attract. This interaction generates a force, causing the alternating current to constantly reverse the poles of the electromagnet in an audio speaker to repeatedly switch directions.

lozanna [386]3 years ago
8 0

Answer:

C. a current that rapidly switches direction

Explanation:

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Even though the Pizza Hut corporation understood the need to make use of the Web, the franchise owners were skeptical. From an I
Gelneren [198K]

Answer:

Franchise owners are essential stakeholder group whose opinions are directly related to the company's success.

Explanation:

Franchise owners are essential stakeholder groups. A stakeholder is a person, organization, social group. A stakeholder can be internal or external to the business. Stakeholders affected by business and affect the business.

Different type of stakeholder is

  • Customer
  • Employees
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Pizza Hut corporation owner is a stakeholder whose opinions are related to the company's success.

8 0
4 years ago
Select the correct text in the passage.
Serjik [45]

Answer:

The answer to this question is given below in the explanation section.

Explanation:

As you know that noise distracts the process of communication. It is anything that distorts a message between two communicators. Noise can take many forms, such as playing the radio in the background, another person interfering with the conversation, and any other distraction that prevent the receiver from paying attention to what the sender is saying.

So, in this question, the noise phrase in the given passage is written in bold.

<em>Ben wanted to call his friend Kevin for a game of football. He rang up Kevin and was about to mention the game.</em> Just then, a car nearby honked loudly. <em>Kevin said that he couldn’t hear what Ben said. Ben then repeated what he had said earlier.</em>

A car honked nearly when Ben and Kevin are communicating with each other is considered noise. A car honked is a noise in the process of communication.    

4 0
3 years ago
Why some programming languages use compilers and other interpreters ?​
Inga [223]

Answer:

A compiler takes a lot of time to analyze the source code. However, the overall time taken to execute the process is much faster. An interpreter does not generate an intermediary code. Hence, an interpreter is highly efficient in terms of its memory.

Explanation:

5 0
3 years ago
Write an exception class named InvalidTestScore. Modify the TestScores class you wrote in Part I so that it throws an InvalidTes
Elan Coil [88]

Answer:

See Explaination

Explanation:

package testscores;

import java.util.ArrayList;

import java.util.List;

public class TestScores {

public List<Integer> scorearray=new ArrayList<>();

public TestScores(List<Integer> scores) throws InvalidTestScore{

this.scorearray=scores;

for(int i=0;i<scorearray.size();i++){

if(scorearray.get(i)>100 || scorearray.get(i)<0){

throw new InvalidTestScore(this.scorearray.get(i));

}

}

}

public double average(){

int tot=0;

for(int i=0;i<this.scorearray.size();i++){

tot=tot+this.scorearray.get(i);

}

return tot*(1.0)/(this.scorearray.size());

}

class InvalidTestScore extends Exception

{

private double amount;

public InvalidTestScore(int Score)

{

System.out.println("Invalid Score "+Score);

}

}

}

8 0
4 years ago
Write a program that reads the subtotal and the gratuity rate, then computes the gratuity and total.For example, if the user ent
lubasha [3.4K]

Answer:

Using Javascript,

function calTotal( subtotal, gratuity){

  gratuityValue = subtotal * (gratuity/100)

  total = subtotal + gratuityValue

  console.log( "gratuity: ", gratuityValue , "\nTotal: ", total)

}

Explanation:

The javascript function above is able to collect two parameters subtotal and gratuity rate in percentage and calculate the total and gratuity value, and displays it on the console.

8 0
3 years ago
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