What are the Induced Poles in Coaxial Coils Facing a Moving Bar Magnet?

In summary, the end planes of the two coaxial coils A and B will behave by inducing a south pole in A and B. This is because the coil in A needs to oppose the magnet, while the coil in B needs to attract the magnet. Additionally, magnetic flux always has a definite direction, from North to South, and forms a complete closed loop.
  • #1
pratyushag
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Homework Statement


A bar magnet is moved between 2 coaxial coils A and B as shown in the figure.The end planes of the two coaxial coils facing the magnet due to induction will behave?


Homework Equations





The Attempt at a Solution



My solution:
It will induce south pole in A and B
south pole in A as the coil needs to oppose the magnet
south pole in B because the coil needs to attract the magnhet

(I have read these properties in a book,so I am just applying them but I don't know what's the logic behind them)
 

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  • #2
pratyushag said:

Homework Statement


magnetic flux have definite direction and they never cross path, always from North to South forming a complete closed loop. think about it.
 

1. What is magnetic induction of coils?

Magnetic induction of coils is the phenomenon where an electric current passing through a wire creates a magnetic field around the wire. When this wire is wound into a coil, the magnetic field is amplified, making it stronger than that of a single wire.

2. How does magnetic induction of coils work?

When an electric current flows through a wire, it creates a circular magnetic field around the wire. When the wire is coiled, the magnetic fields of each loop combine, creating a stronger magnetic field. This is due to the fact that the magnetic field lines are closer together in a coil, making the magnetic field more concentrated.

3. What is the purpose of magnetic induction of coils?

The primary purpose of magnetic induction of coils is to produce a strong and consistent magnetic field for various applications. This includes use in electromagnets, generators, motors, and transformers.

4. How is magnetic induction of coils measured?

The strength of a magnetic field produced by a coil can be measured using a tool called a Gaussmeter. This measures the magnetic flux density, or the amount of magnetic field lines passing through a specific area, and is typically measured in units of Tesla or Gauss.

5. What factors affect the magnetic induction of coils?

The strength of the magnetic field produced by a coil is affected by several factors, including the number of turns in the coil, the current flowing through the coil, the material of the core, and the physical size and shape of the coil. These factors can be manipulated to control the strength and direction of the magnetic field produced by the coil.

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