Exploring Magnetism: From Basic Principles to Technological Applications

In summary, the conversation was about questions regarding magnetism and its related principles. The first question was about how the nature of a material determines its ability to become a magnet. The second question was about the appearance of the magnetic field around a straight conductor. The third question was about the direction of the magnetic field in a solenoid. The fourth question was about the action of a relay. Lastly, the conversation touched on the relationship between the principles of magnetism and the development of the telephone.
  • #1
grade11
50
0
I just have some questions about this stuff...

How can the nature of a material determine if it can be made into a magnet?

Whats the field around a straight conducter look like?

Whats the direction of the magnetic field of a soleniod?

Whats the action of a relay?

How are the principles of magnetism related to the development of the telephone?
 
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  • #2
You can't just post questions verbatim in the homework thread - we are here to help and explain not just to copy out answers.
Especially when you were told about this yesterday and have simply reposted the same questions as a new thread.
Irrespective of the official sanctions about this, people will simply start ignoring any threads by you.

I suggest you look at wikipedia first then come back and ask about any specific points you don't understand.
 
  • #3
Whoa calm it down, seroiusly wat is your problem? I am asking the question becuase i do not understand the answers? and i thought the thing from yesterday was telling me that my questions didnt make sense and i had to reword them, like you can either help or not but don't run me down on what i feel i need help on. thanks.!
 

FAQ: Exploring Magnetism: From Basic Principles to Technological Applications

What is the difference between a current and a magnetic field?

A current is a flow of electric charge, while a magnetic field is a region in space where magnetic forces are present. Currents are created by the movement of charged particles, while magnetic fields are caused by the alignment of those particles.

How are currents and magnetic fields related?

Currents and magnetic fields are closely related through the concept of electromagnetism. Moving electric charges create magnetic fields, and changing magnetic fields can induce electric currents. This relationship is described by Maxwell's equations.

What are some real-world applications of currents and magnetic fields?

Currents and magnetic fields have a wide range of practical applications, including electric motors, generators, MRI machines, and power generation and transmission. They are also used in many household devices, such as speakers, headphones, and computer hard drives.

Can magnetic fields affect human health?

There is ongoing research on the potential effects of magnetic fields on human health. While some studies have shown a possible link between exposure to magnetic fields and certain health conditions, such as childhood leukemia, there is currently no conclusive evidence to support this. The strength of magnetic fields encountered in everyday life is generally considered to be safe.

How can we measure currents and magnetic fields?

There are various devices that can be used to measure currents and magnetic fields, such as ammeters, voltmeters, and magnetometers. These instruments measure the strength and direction of electric and magnetic fields, and can be used to map out the fields in a given area. They are important tools for understanding and studying the behavior of currents and magnetic fields.

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