Balancing magnetic force with gravity.

In summary, the conversation discusses a solution to a question involving a square loop falling under gravity in a uniform magnetic field. The solution is easy to understand, but there are some questions about different scenarios, such as starting the loop at different positions within the field. It is mentioned that the problem becomes harder if the loop starts above the field, but the current would be in the opposite direction.
  • #1
Sammy268
7
0
I have been reading ahead in my course from Griffiths textbook and I have a couple of questions. I found this solution online to a question: http://glennrowe.net/physicspages/2013/09/23/balancing-magnetic-force-with-gravity/

It says: A square loop is cut out of a thick sheet of aluminum. It is then placed so that the top portion is in a uniform magnetic field B, and allowed to fall under gravity.

The solution is fairly easy to understand, but I have a couple of questions.

What if the loop starts when the bottom edge is in line with the bottom of the magnetic field? In this case would B = 0? Is it possible to work out how long it would take to clear the field?

What would happen if the loop were to begin falling from above the field? Does this make the problem harder?
 
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  • #2
Sammy268 said:
What if the loop starts when the bottom edge is in line with the bottom of the magnetic field? In this case would B = 0? Is it possible to work out how long it would take to clear the field?
The magnet provides B the B field, so no, B would not be =0.
If in line with the B field as soon as the loop falls any distance it has cleared, and the problem becomes as before.

Sammy268 said:
What would happen if the loop were to begin falling from above the field? Does this make the problem harder?
Not really.
The current would be in the opposite direction with the bottom edge within the field as opposed to the bottom edge within the field.

What do you think would happen if both top and bottom edge are both within the field?
 

Related to Balancing magnetic force with gravity.

What is the concept of balancing magnetic force with gravity?

The concept of balancing magnetic force with gravity is based on the idea that these two forces have a significant impact on objects in our universe. Magnetic force is the attractive or repulsive force between two objects due to their magnetic fields, while gravity is the force of attraction between two objects with mass. Balancing these forces is crucial in understanding how objects move and interact with each other.

How do magnetic fields and gravity interact with each other?

Magnetic fields and gravity interact with each other in different ways depending on the objects involved. In general, magnetic fields can either enhance or counteract the effects of gravity. For example, a strong magnetic field can lift an object against the force of gravity, while a weaker magnetic field would have little effect on the object's movement.

What are some real-world applications of balancing magnetic force with gravity?

Understanding how to balance magnetic force with gravity has many practical applications, such as in the design of magnetic levitation trains and magnetic bearings. In space exploration, balancing these forces is crucial in spacecraft navigation and control, as well as in studying the behavior of planets and other celestial bodies.

What factors affect the balance between magnetic force and gravity?

The balance between magnetic force and gravity can be influenced by several factors, including the strength of the magnetic field, the distance between the objects, and the masses of the objects involved. Additionally, the orientation and alignment of the magnetic fields and the objects can also play a role in determining the balance between these forces.

How can scientists study and measure the balance between magnetic force and gravity?

Scientists use various instruments and techniques to study and measure the balance between magnetic force and gravity. These include magnetic field sensors, accelerometers, and other specialized equipment. By analyzing the data collected from these tools, scientists can better understand the relationship between these two fundamental forces.

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