Electromagnetism Explaining Question

In summary, a bar magnet placed at the mouth of a solenoid will experience a force of attraction towards the solenoid when the current is turned on. This is due to the opposite magnetic poles of the magnet and solenoid attracting each other. However, because the solenoid is much larger and more massive, there may be additional effects such as a stronger force or movement of the magnet towards the solenoid. Further explanations or help with this problem can be found in the 'Introductory Physics' subforum.
  • #1
PhysicsJunkie
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1. The problem statement, all given/known data

A bar magnet is positioned at the mouth of a solenoid. The current indicated in the solenoid is then turned on. (Assume the solenoid is a lot bigger than the bar magnet.) Gravity and friction can be ignored.

Describe what would happen, and why.

For a visual representation:

http://img141.imageshack.us/img141/3614/assignmentq.png

2. The attempt at a solution

To try and solve it I drew the above diagram. Since the north pole of the bar magnet is facing the south pole of the solenoid I suppose they would attract?

But I feel like there's something else that would happen (ex. something more drastic since the solenoid is much more massive).

Any help/explanations will be greatly appreciated! :smile:
 
Last edited by a moderator:
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  • #2
Sorry just realized I posted this in the wrong subforum.
Can a moderator please move it to the 'Introductory Physics' subforum? Thanks and sorry.
 

1. What is electromagnetism?

Electromagnetism is a branch of physics that deals with the study of electric and magnetic fields, and how they are related to each other. It is also concerned with how these fields interact with matter and the effects they have on objects.

2. What is an electromagnet?

An electromagnet is a type of magnet that is created by passing an electric current through a wire. This current creates a magnetic field, which can attract or repel objects made of certain materials. Unlike permanent magnets, the strength of an electromagnet can be adjusted by changing the amount of current flowing through the wire.

3. How does electricity create a magnetic field?

Electricity and magnetism are closely related phenomena. When an electric current flows through a wire, it creates a circular magnetic field around the wire. The strength of this field depends on the amount of current flowing through the wire and the distance from the wire.

4. What are some practical applications of electromagnetism?

Electromagnetism has a wide range of practical applications, including generators, motors, transformers, and MRI machines. It is also used in everyday items such as speakers, doorbells, and credit cards. Electromagnets are also used in industrial settings for lifting heavy objects and separating materials.

5. How does electromagnetism relate to light?

Light is an electromagnetic wave, which means it is made up of electric and magnetic fields that oscillate at right angles to each other. This connection between light and electromagnetism was first discovered by James Clerk Maxwell in the 19th century and has been further developed through the study of quantum mechanics.

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