All Questions
10
questions with no upvoted or accepted answers
1
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0
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28
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Which equation is most valid for finding power dissipation in a induced magnetic pendulum system?
Considering a set up where a conducting pendulum oscillates between two permanent magnets, I want to somehow calculate the power dissipated by the magnetic braking force the magnets provide, in order ...
1
vote
1
answer
92
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Magnet A exerts an magnetic force $F_1$ on magnet B, B exerts a Reactive force $R_1$ on A, B exerts an magnetic force $F_2$ on A, is $R_1=F_2$?
Let's suppose there are 2 magnets, A and B, that are within the magnetic field of each other. Then A will exert a magnetic force on B (let's name it F1), and, due to the 3rd law of Newton, every ...
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1
vote
2
answers
100
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How do we apply force on a body?
We know that force is apllied either by pushing or pulling anything.
But how do we push or pull or apply force on anything.
I imagine the object A that is pushing and another object B that is getting ...
user316791
1
vote
0
answers
47
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Unstable Equilibrium of hinged rods
I conjured up a scenario where there are two rods free to rotate about a hinge connected by their ends by spring of spring constant $k$,both their masses are $m$ and length $l$ and mass is uniformly ...
0
votes
1
answer
47
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What happens when both magnetic field and electric field is applied to a charged particle?
Now what exactly happens when magnetic field and electric field is applied perpendicularly? What happens when they are not perpendicular?
In the question, it says that a magnetic field and electric ...
- 91
0
votes
2
answers
69
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Can the following set up be used to propel something upwards?
Let A and B be solenoids with the same pole facing each other.
Then will their repulsion cause the set up to jump upwards?
Please correct me if I am wrong:
Solenoid A exerts a downward force on ...
0
votes
2
answers
87
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How does magnet follow both law at same time newton 3rd law but also magnetic field?
have been wondering a question that:-
It is said that " magnet(say,Magnet no.1) has a magnetic field that informs in which direction the north pole (of other magnet or compass say , magnet no.2) ...
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0
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52
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Forces on a closed container that can electromagnetically suspend objects
If you have a closed container (without air or other fluids, only with the object inside) that can electromagnetically suspend or maintain (not like if the container walls are covered with a single ...
0
votes
1
answer
83
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In classical electrodynamics, what are the equations of motion for a pair of point charges?
I know the equations for a (point) charge in a background electromagnetic field, and for the electromagnetic field due to a fixed current. What are the general equations, for the evolution of an ...
- 133
0
votes
0
answers
3k
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Solenoid pull force & Velocity calculation
So I am building a circular accelerator (like a slightly oversimplified model version of CERN) as a physics project, and I'm at a dead end. I believe I need to know how to work out differential ...
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