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3 years ago

What is a circuit breaker and how is it different from a fuse? Why do we need these two different devices?

Computers and Technology

2 answers:

Liula [17]3 years ago

7 0

Answer:

Circuit breakers and fuses both have the same purpose, but a fuse will melt when stopping electricity where as circuit breakers can just be reset. You need both devices in order to stop a overload of power that could fry your electronics or worse, start fires.

Explanation:

sergeinik [125]3 years ago

4 0

Answer:

$\huge\sf \pink{circuit \: Breaker:}\$

It's A device used to protect an electrical circuit from damage caused by overcurrent/overload or short circuit.
Function: To interrupt current flow after protective relays detect a fault.
Why do we need them : It disrupts the flow of a current if there's a short circuit or overload. In doing so, it can prevent damage to an electrical circuit and possibly appliances, electronics, and our home.

$\huge\sf \pink{Fuse:}\$

It's A device that protects circuits and appliances by stopping the flow of unduly high electric current.
Function :The basic function of fuse is to prevent fire .It breaks electrical circuit if there occurs a fault in electrical appliances that causes too much current flow.
why do we need them : Without a fuse, there are many possibilities for electrical fires or extreme damage to a circuit.

Hope it Helps

~ʆᵒŕ∂ཇꜱꜹⱽẻⱮë

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2 years ago

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3 years ago

Read 2 more answers

In Java: Write a class called Shelf that contains instance data that repre-sents the length, breadth, and capacity of the shelf.

disa [49]

Answer:see explanation

Explanation:

Hello, the solution is the following:

in a file named Shelf.java :

public class Shelf{

int length;

int breadth;

int capacity;

boolean occupied;

Shelf(int length,int breadth, int capacity){

this.length = length;

this.breadth = breadth;

this.capacity = capacity;

this.occupied = false;

}

//set methods

public void setLength(int length){

this.length = length;

}

public void setBreadth(int breadth){

this.breadth = breadth;

}

public void setCapacity(int capacity){

this.capacity = capacity;

}

public void setOccupied(boolean occupied){

this.occupied = occupied;

}

//get methods

public int getLength(){

return this.length;

}

public int getBreadth(){

return this.breadth;

}

public int getCapacity(){

return this.capacity;

}

public boolean getOccupied(){

return this.occupied;

}

//tostring method

public String toString(){//overriding the toString() method

return "Shelf: \n"+" length: "+Integer.toString(this.length)+" breadth: "+Integer.toString(this.breadth)+" capacity: "+Integer.toString(this.capacity)+" occupied: "+Boolean.toString(this.occupied);

}

in another file named ShelfCheck.java

public class ShelfCheck {

public static void main(String[] args) {

Shelf s1=new Shelf(100,150,300);

Shelf s2=new Shelf(200,200,234);

Shelf s3=new Shelf(300,222,543);

Shelf s4=new Shelf(400,434,654);

System.out.println(s1);

System.out.println(s2);

System.out.println(s3);

System.out.println(s4);

s4.setLength(5);

System.out.println(s4);

s2.setBreadth(2);

System.out.println(s2);

s3.setCapacity(1);

System.out.println(s3);

s1.setOccupied(true);

System.out.println(s1);

}

OUTPUT:

Shelf:

length: 100 breadth: 150 capacity: 300 occupied: false

Shelf:

length: 200 breadth: 200 capacity: 234 occupied: false

Shelf:

length: 300 breadth: 222 capacity: 543 occupied: false

Shelf:

length: 400 breadth: 434 capacity: 654 occupied: false

Shelf:

length: 5 breadth: 434 capacity: 654 occupied: false

Shelf:

length: 200 breadth: 2 capacity: 234 occupied: false

Shelf:

length: 300 breadth: 222 capacity: 1 occupied: false

Shelf:

length: 100 breadth: 150 capacity: 300 occupied: true

5 0

3 years ago

List at least five tasks a layer performs. Could one (or more) of these tasks could be performed by multiple layers?

ludmilkaskok [199]

Answer:

Transport layer:

- data packets are segment to smaller chunks.

- gives sequence number to segment.

- identifies the source and destination port number.

- initiates data transmission between nodes.

- rearrange and identifies the application, the transmitted data is meant for.

Explanation:

The transport layer is the fourth layer in the OSI network model. Protocols like TCP and UDP are found in this layer. It segment data packets and for a connection oriented protocol like TCP, it creates an established session between source and destination host (the session layer can also do this, but it is more defined in the transport layer).

The network and data-link layer can also transmit data packets.

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3 years ago