- #1
Ryan Reed
- 51
- 4
How would you calculate the energy in an electromagnetic field produced by a particle such as an electron?
Ryan Reed said:But as it goes out, the energy would get smaller and smaller, getting to the point where even though it's infinite, the energy would be so much smaller the farther you go away,
What I mean by this is the answer should be something like pi, infinitely long, not infinitely large. Pi is infinitely long, but will never go above 3.14Vanadium 50 said:I don't know what to say. Integrals take care of this. That's why we use them,
Ryan Reed said:But as it goes out, the energy would get smaller and smaller, getting to the point where even though it's infinite, the energy would be so much smaller the farther you go away,
What do you mean "as it goes out"? The E field of a charge does not radiate energy, it stores energy. The energy that is there does not go anywhere without a B field also.Ryan Reed said:But as it goes out,
The energy in an EM field can be measured using a device called a power meter. This device measures the power, or rate of energy transfer, of the EM field.
Yes, the energy in an EM field can be calculated using the equations for electric and magnetic fields. These equations include variables such as electric and magnetic field strengths, distance, and permittivity and permeability of the medium.
No, the energy in an EM field is not constant. It is constantly being transferred and transformed between electric and magnetic fields as the wave propagates through space.
The energy in an EM field is directly proportional to the frequency of the wave. This means that as the frequency increases, so does the energy in the EM field.
No, the energy in an EM field cannot be negative. It is always a positive value, representing the amount of energy being transferred by the wave.