The electric field is the driver of the EM wave power. The source of the EM wave makes a sinusoidal electric field continuously then the changing electric field makes a magnetic field instantly in all paths of its propagation, so the magnetic field is sinusoidal also with a delay phase. The...
相关知识点: 试题来源: 解析 Similarity — Both exert a force without contactDifference —— Force by electric field is always parallel to the electric field line, force by the magnetic field is always perpendicular to the magnetic field lines 反馈 收藏 ...
Electric Fields that "Arrive" before the Time Derivative of the Magnetic Field prior to Major Earthquakes The low frequency electric signals (emitted from the focal area when the stress reaches a critical value) that precede major earthquakes, are recorded at d... PA Varotsos,NV Sarlis,ES S...
Understand the concept of electric potential difference with an example, and learn how to find the electric potential difference formula between two points. Updated: 11/21/2023 Table of Contents Electric Potential and Electric Field: Overview What is Electric Potential Difference? Electric Potential ...
In this paper, the three-dimensional finite-difference time-domain (FD-TD) method is used for the analysis of the electromagnetic field inside the water load. In the fundamental investigation using the high-loss dielectric loaded rectangular waveguide, it is confirmed that the FD-TD numerical ...
This page compares TEM wave vs quasi TEM wave and describes difference between TEM wave and quasi TEM wave. TEM wave referred as Transverse electromagnetic wave. In this mode, electric field and magnetic field are perpendicular to each other and perpendicular to the direction of propagation. This...
In the case motional emf, there is a static magnetic field and a rectulgular loop that goes into the field region, then current is produced. There is no electric field, but there is an emf. However, Griffiths states that emf is equal to the potential difference between the source endpoint...
EFIE (electric field integral equation) suffers from internal resonance, and the remedy is to use MFIE (magnetic field integral equation) to come up with a CFIE (combined field integral equation) to remove the internal resonance problem. However, MFIE is fundamentally a very different integral ...
2. Two parallel plates, one positively charged, one negatively charged, have a uniform electric field between them. (The field lines point from positive to negative.) Where between the plates is the electric potential greatest? At the positive plate. ...
What is the difference between magnetic field and magnetic force? What is the difference between gravitational potential energy and electric potential energy? What is inertia? How would you explain the difference between kinetic energy and potential energy? Give an example from the real world where ...