It is the theoretical framework for making models of subatomic particles.
An example you could look at for a model is a Feynman diagram.

Hope this helps đź™‚

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Posted in Physics

A 60-W light bulb radiates electromagnetic waves uniformly in all directions. At a distance of 1.0 m from the bulb, the light intensity is I0, the average energy density of the waves is u0, and the rms electric and magnetic field values are E0 and B0, respectively. 1. At 2.0 m from the bulb, what is the light intensity? 2. At 2.0 m from the bulb, what is the rms magnetic field value? 3. At 2.0 m from the bulb, what is the average energy density of the waves?

1. If we increase the distance to twice it’s original value, the light intensity is reduced by one-fourth, the light intensity would be:
I0/4

2. rms magnetic field is inversely proportional to distance, so the new rms magnetic field would be:
B0/2

3. average energy density is inversely proportional to the square of the distance, so the new average energy density is:
E0/4

Posted in Physics

Which law describes the magnetic field in a nonlinear wire?

Answer:

Lenz’s law

Explanation:

Lenz’s Law states that the induced tensions will be such that they oppose the variation of the magnetic flux that produced them; However, this law is a consequence of the principle of conservation of energy.

Lenz’s Law: “The sense of the currents or induced electromotive force is such that it always opposes the cause that produces it, that is, the variation of the flow.”

Thanks to the already named Lenz Law, the Faraday Law was completed, so it is common to also call it the Faraday-Lenz Law to honor its efforts in the problem, Russian physicists always use the name “Faraday-Lenz Law “.

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