All Questions
Tagged with newtonian-gravity electromagnetism
73
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2
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179
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A question about magnetic field lines
In the simple experiment of spraying iron filings around a magnet, why doesn't the magnetic field (provided that it is strong enough) cause the iron filings to form a $3\mathrm D$ skeleton along the ...
- 105
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36
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Reason behind dependence of forces on the medium [duplicate]
I am a high school student and have covered basic concepts in electrostatics, magnetism and gravitation. It is clearly stated in my text book that the gravitational force experienced between two ...
- 2,352
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2
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541
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What is the strength of gravity compared to electromagnetism?
I would like to know the strength of gravity as compared to electromagnetism. Im not looking for their classical constant values. It can be compared by saying i.e. gravity is a million billion times ...
- 31
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149
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Does free fall in a magnetic field also leads to no force acting on the falling object similar to free fall in gravity
In complete absence of gravity if a metallic object free falls in a magnetic field will it continuously feel the force of magnetic field or will stop feeling the magnetic field during the free fall.
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How can the first Maxwell equation be valid in non-static cases?
I am thinking in the framework of Classical Gravity, where the speed of the interaction is infinite. Now it is also known that there is a correspondence between Classical gravity and electrostatics, ...
- 2,347
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121
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How does the Earth remain in its shape?
I know only stars do nuclear fusion to keeps its shape from gravity. Then what about the Earth? Earth doesn't do nuclear fusion. How does the Earth keep its shape even though the gravity keeps pushing ...
- 29
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229
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Gravity breaks Newton's third law?
Consider a thought experiment where there is a point mass M present in empty universe. Then another point mass m materializes (This is ONLY a thought experiment) at a distance of 1 light year from M. ...
3
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1
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89
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Why do we not have devices like inductors or capacitors to hold gravitational field? [closed]
I know that a capacitor can store electric field and an inductor can store magnetic field. So is there a way that gravitational field field can be stored in any such device. Also we do not have a law ...
4
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1
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388
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Is there an Abraham-Lorentz force for Gravity?
The Abraham-Lorentz force in Electromagnetism is the recoil a charge experiences as it accelerates due to own emission of radiation.
The Newtonian theory of gravity is identical to that of ...
- 596
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3
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1k
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Why does Newton's Third Law work for fields?
Newton's 3rd law goes like this: To every action there is always opposed an equal reaction: or the mutual actions of two bodies upon each other are always equal, and directed to contrary parts.
I ...
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4
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Can Newton’s law of gravitation be derived from Coulomb’s law? [duplicate]
I’m casually learning physics and have noticed that Newton’s law of gravitation and the electrostatic force formulas look similar. I’ve asked this question before but would really appreciate another ...
- 257
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If there were positive and negative masses similar to positive and negative charges, would there be some kind of gravitational magnetic force?
Coulomb's law is very similar to Newon's law of gravitation. But as we go deeper into electromagnetic phenomena we see that it is very complex compared to newtonian gravitation. For example if the ...
- 529
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3
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426
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A broader view on contact forces
I am aware that all the contact forces we experience like tension, friction, normal reaction, et cetera are complex manifestations of the fundamental forces which are gravitational forces, ...
- 1,147
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102
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Parametric equation for a weird trajectory in affect of gravity and magnetic field [closed]
This is a question from Bangladesh Physics Olympiad:
Draw the trajectory of the charge $+q$ .Necessary informations are given in the figure. $B$ is the magnetic
field.
What I want to know is ...
- 1,228
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Why don't orbits of bodies in the Solar System decay analogously to classical atoms?
The main drawback in Rutherford's model of the atom as pointed out by Niels Bohr was that according to Maxwell's equations, a revolving charge experiences a centripetal acceleration hence it must ...
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