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    • 방장 : 미르나래
    • 대상 : 중학생
    • 도서수준 : 고전 & 과학

    고전과 과학을 함께 (중학생이 운영하는 북클럽입니다)

  
[18]Electricity and Magnetism 4차 미션

글쓴이 미르나래

등록일 2013-09-16 22:48

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http://www.suksuk.co.kr/momboard/CAX_090/5140

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Q1. Why does there have to be a wire that is the 'Conductor' to make electricity flow?

 

 

 

 

Q2. What property should a fuse have?

 

 

 

 

To be answered by 10/6 after reading chap2.1(40~50p)


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빛나는지 2013-10-06 20:08 

1. A circuit must be a closed path in order for charge to flow. Therefore, there must be a conductor, that must form a connection from the voltage source to the electrical device and back. Without a conductor the electricity will have no path to flow out of the voltage source, pass the electrical device, and back to the voltage source.

2. A fuse's purpose is to shut off the circuit if there is to much current in it for safety purposes, because if there is to much current in it, the circuit could be overheated, and it might catch fire, or people might recieve an electric shock if part of the electricity might form a hole and flow outside where it is supposed to flow. So the me/tal strip that is put in a fuse must be melted just at the right time when it is overheated, because if it melts too easily for the device, using it would be very uncomfortable, and if it doesn't melt easily, even at a dangerous level, it will be of no use. So there must be a various type of fuses, because there are various types of electrical devices that needs different amounts of electricity, and users must know easily what fuse to use.

annie0717 2013-09-29 22:54 
1. Charge cannot flow without a circuit with a closed path. Therefore, something needs to form a connection from the voltage source to the electrical device and back, which is the conductor, such as wire.
2. The property of a fuse depends on how much current the wiring can handle. The fuse could break if too much charge flows through the fuse and the ****l strip melts. The electrician has to choose the right kind of fuse to be adequate for the purpose of the circuit.
Erin37 2013-09-29 18:13 

Q1. To connect the voltage source to the clectrical device and back.

Q2. A fuse is a thing that will break when overheated. So the fuse would have to be broken when it reaches a certain temperature.

directioner 2013-09-20 16:49 

Q1.Conductor provides a path through which charge can flow. And a circuit must be a closed path to make the electricity flow. So if there aren't any wire, which can be the conductor, there won't be a path that electricity can flow. Of course, it doesn't have to be a wire unless you pick nonconductor as to connect and make a path that electricity can flow.

Q2. Well, I don't know what you mean. If you are talking about what the fuse is consists of, than the answer will be 'a thin strip of ****l that is inserted into the circuit'.


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