Understanding Induced Movement of Coil and Magnet

In summary, the conversation discusses the concept of electrically induced magnetic fields and their interaction with permanent magnetic fields. The reason behind an induced magnetic field causing a coil to move is due to the generation of current in the wire, which produces a magnetic field that interacts with the existing field. It is important to note that this is different from a magnetic field produced by a permanent magnet. Additionally, it is mentioned that in an induction motor, the coil of wire must be shorted for this phenomenon to occur.
  • #1
IvaNMK
13
0
movingcoil.jpg


What is the answer? Should be B

Please Explain the reason behind

I don't understand how an induced Magnetic Field will cause the coil to move.

(Not Homework)Source:tycphysics.org/TIPERs/TIPER%206_20_02_keys%20pdf/EMI%205a_Key_6_02.pdf

thanks for helping
 
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  • #2
Is an electrically induced magnetic field somehow different from a magnetic field produced by a permanent magnet?

When a magnet moves through the coil of wire, a current is induced in the wire. When current is flowing through a wire, a magnetic field is generated around the wire. If another magnetic field is present, they will interact.

Induction Motor
 
  • #3
B is true if the coil of wire is shorted. The dB/dt linking the coil will develop a voltage around and hence a current in the wire that opposes the field of the magnet.
 
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FAQ: Understanding Induced Movement of Coil and Magnet

What is the relationship between the movement of a coil and a magnet?

The movement of a coil and a magnet is a fundamental principle in electromagnetism. When a magnetic field is created by a magnet, it exerts a force on the charged particles in the coil, causing it to move.

How does the direction of movement of a coil affect the magnetic field?

The direction of movement of a coil can affect the strength and direction of the magnetic field. When the coil and magnet are moving parallel to each other, the magnetic field is at its strongest. When they are moving perpendicular to each other, the magnetic field is at its weakest.

What is the significance of the speed of movement in a coil and magnet experiment?

The speed of movement in a coil and magnet experiment is important because it determines the magnitude of the induced current. The faster the movement, the larger the induced current and the stronger the magnetic field.

How does the distance between the coil and magnet affect the movement?

The distance between the coil and magnet also plays a role in the movement. The closer the coil is to the magnet, the stronger the magnetic field and the greater the movement of the coil. When the distance increases, the movement of the coil decreases.

What are some real-world applications of the movement of coil and magnet?

The movement of coil and magnet is used in various technological applications, such as electric generators, electric motors, and speakers. It is also used in medical devices such as MRI machines, which use strong magnetic fields to produce images of the body's internal structures.

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