Electromagnetic Waves
... Example 19.1 An EM plane wave traveling along the x-axis has an effective crosssectional area of 1.5 cm2, a maximum electric field of 1500 N/C and a frequency of 4 ⫻ 1015 Hz. Find each of the following quantities: its maximum B field, energy density, an expression for the Poynting vector, the intens ...
... Example 19.1 An EM plane wave traveling along the x-axis has an effective crosssectional area of 1.5 cm2, a maximum electric field of 1500 N/C and a frequency of 4 ⫻ 1015 Hz. Find each of the following quantities: its maximum B field, energy density, an expression for the Poynting vector, the intens ...
Solutions
... There are three values of θ which give rise to enhanced symmetry. The first, and most obvious to see, is for θ = π/2 which clearly gives rise to a simple cubic lattice. The other two cases are a bit more subtle. Consider the plane spanned by ~a1 and ~a2 . When θ = π/3, we see that a two-dimensional ...
... There are three values of θ which give rise to enhanced symmetry. The first, and most obvious to see, is for θ = π/2 which clearly gives rise to a simple cubic lattice. The other two cases are a bit more subtle. Consider the plane spanned by ~a1 and ~a2 . When θ = π/3, we see that a two-dimensional ...
SYLLABUS 9702 Cambridge International AS and A Level Physics
... Candidates should be able (in words or by using symbolic, graphical and numerical forms of presentation) to: 1. locate, select, organise and present information from a variety of sources 2. translate information from one form to another 3. manipulate numerical and other data 4. use information to id ...
... Candidates should be able (in words or by using symbolic, graphical and numerical forms of presentation) to: 1. locate, select, organise and present information from a variety of sources 2. translate information from one form to another 3. manipulate numerical and other data 4. use information to id ...
lecture1423903135
... and is called the directional derivative of V along a. This is the rate of change of V in the direction of a. – If A is the gradient of V, then V is said to be the scalar potential of A. Divergence of a Vector: • The divergence of a vector, A, at any given point P is the outward flux per unit volume ...
... and is called the directional derivative of V along a. This is the rate of change of V in the direction of a. – If A is the gradient of V, then V is said to be the scalar potential of A. Divergence of a Vector: • The divergence of a vector, A, at any given point P is the outward flux per unit volume ...
ANILINIUM BROMIDES
... NH, +Br- has the highest v (Br") value observed in this study, whereas the analogous iodide salt has a very low v (1127) and o-NO2C6H1NH3+Br- exhibits v (Br") at an intermediate value between the corresponding meta and para compounds]. Anomalies of behaviour associated to ortho substituents are well ...
... NH, +Br- has the highest v (Br") value observed in this study, whereas the analogous iodide salt has a very low v (1127) and o-NO2C6H1NH3+Br- exhibits v (Br") at an intermediate value between the corresponding meta and para compounds]. Anomalies of behaviour associated to ortho substituents are well ...
Introduction CHAPTER 1
... This is the Helmholtz equation with purely imaginary k2 : Therefore, the wavenumber in this case will have both real and imaginary parts. Since both k and 2k provide solutions of the Helmholtz equation then either two “thermal waves” can be considered or one solution can be set to zero, based on the ...
... This is the Helmholtz equation with purely imaginary k2 : Therefore, the wavenumber in this case will have both real and imaginary parts. Since both k and 2k provide solutions of the Helmholtz equation then either two “thermal waves” can be considered or one solution can be set to zero, based on the ...
test particle energization by current sheets and nonuniform fields in
... dissipative terms. We take R ¼ Rm ¼ 1000, which are limited here by the available spatial resolution. The timescale for the turbulent MHD fields is t0 ¼ L=v0 (eddy turnover time). We consider a decaying simulation from an initial state with the kinetic and magnetic field fluctuations populating an a ...
... dissipative terms. We take R ¼ Rm ¼ 1000, which are limited here by the available spatial resolution. The timescale for the turbulent MHD fields is t0 ¼ L=v0 (eddy turnover time). We consider a decaying simulation from an initial state with the kinetic and magnetic field fluctuations populating an a ...
Chapter 27 – Magnetic Field and Magnetic Forces
... with axis parallel to field. Electron analogy: “spinning ball of charge” circulation of charge around spin axis similar to current loop electron has net magnetic moment. - In Fe atom, large number of electron magnetic moments align to each other non-zero atomic magnetic moment. - In unmagnetize ...
... with axis parallel to field. Electron analogy: “spinning ball of charge” circulation of charge around spin axis similar to current loop electron has net magnetic moment. - In Fe atom, large number of electron magnetic moments align to each other non-zero atomic magnetic moment. - In unmagnetize ...
Slide 1
... they are in an electric field they will move opposite to the direction of E If I rub two insulators together electrons will be removed from one insulator and the other will get an excess. If I bring an insulator with negative charge near a conductor then the charge in the conductor will separate. If ...
... they are in an electric field they will move opposite to the direction of E If I rub two insulators together electrons will be removed from one insulator and the other will get an excess. If I bring an insulator with negative charge near a conductor then the charge in the conductor will separate. If ...
Effects of a Conducting Sphere Moving Through a
... S a conducting body moves through a magnetic field, it normally experiences a force to oppose the motion due to eddy or Foucault currents1. These are created from the EMF that is produced by the magnetic flux change. However, if the magnetic field is uniform, the EMF that is produced initially is ca ...
... S a conducting body moves through a magnetic field, it normally experiences a force to oppose the motion due to eddy or Foucault currents1. These are created from the EMF that is produced by the magnetic flux change. However, if the magnetic field is uniform, the EMF that is produced initially is ca ...
Techniques and Examples for Zero-g Melting and Solidification
... velocities can easily be imparted by application of rotating magnetic fields in an induction motor analogy. The rotating magnetic field would be produced by pairs of orthogonal coil sets phased in quadrature. These same coils can also be used for position and velocity control as discussed in the fol ...
... velocities can easily be imparted by application of rotating magnetic fields in an induction motor analogy. The rotating magnetic field would be produced by pairs of orthogonal coil sets phased in quadrature. These same coils can also be used for position and velocity control as discussed in the fol ...
Time in physics
Time in physics is defined by its measurement: time is what a clock reads. In classical, non-relativistic physics it is a scalar quantity and, like length, mass, and charge, is usually described as a fundamental quantity. Time can be combined mathematically with other physical quantities to derive other concepts such as motion, kinetic energy and time-dependent fields. Timekeeping is a complex of technological and scientific issues, and part of the foundation of recordkeeping.