OPTICAL PUMPING OF RUBIDIUM OP1-B Guide to the Experiment
... Figure 2B-2. Energy levels of an alkali atom in the 2S1/2 state with a nuclear spin of 3/2 and a positive nuclear magnetic dipole moment in a weak magnetic field. In the case of an atom with either J = 1/2 or I = ½, the energy levels can be calculated in closed form from quantum mechanics, and this ...
... Figure 2B-2. Energy levels of an alkali atom in the 2S1/2 state with a nuclear spin of 3/2 and a positive nuclear magnetic dipole moment in a weak magnetic field. In the case of an atom with either J = 1/2 or I = ½, the energy levels can be calculated in closed form from quantum mechanics, and this ...
1 - web page for staff
... radius a carrying the return current I in the –az direction as a surface current. Find expressions for the magnetic field intensity everywhere. If the current is 1.0 A and the radius a is 2.0 cm, plot the magnitude of H versus radial distance from the z-axis ...
... radius a carrying the return current I in the –az direction as a surface current. Find expressions for the magnetic field intensity everywhere. If the current is 1.0 A and the radius a is 2.0 cm, plot the magnitude of H versus radial distance from the z-axis ...
PERTURBATION THEORY IN THE DESIGN OF
... resonators are of particular interest in the infrared and visible frequency range since they are easier to fabricate lithographically. 2.2.1. Waveguide Method for First Magnetic Mode An approximate treatment of these resonators is based on using waveguide extensions of the resonator in one direction ...
... resonators are of particular interest in the infrared and visible frequency range since they are easier to fabricate lithographically. 2.2.1. Waveguide Method for First Magnetic Mode An approximate treatment of these resonators is based on using waveguide extensions of the resonator in one direction ...
________________Table des Matières_______________
... use of this family of compounds in applications has several disadvantages (low Curie temperature, low sensitivity to the applied field, large resistivity..), the importance of manganites is more clear as a model system for several fundamental studies due to the strong coupling between the magnetic, ...
... use of this family of compounds in applications has several disadvantages (low Curie temperature, low sensitivity to the applied field, large resistivity..), the importance of manganites is more clear as a model system for several fundamental studies due to the strong coupling between the magnetic, ...
AQA GCSE Physics Sample Pages
... Some metals, for example iron, steel, cobalt and nickel, are magnetic. A magnet will attract them. If you drop some steel pins on the floor you can pick them up using a magnet. A magnetic force is an example of a non-contact force, which acts over a distance. In Figure 5.4, you can see a bar magnet ...
... Some metals, for example iron, steel, cobalt and nickel, are magnetic. A magnet will attract them. If you drop some steel pins on the floor you can pick them up using a magnet. A magnetic force is an example of a non-contact force, which acts over a distance. In Figure 5.4, you can see a bar magnet ...
Group 1: Magnetism
... Explain and describe why the speed of light is the universal speed limit Explain, describe and discuss length contraction Describe and discuss relativistic length contraction mathematically Explain and describe the mass-energy relationship Describe and discuss nuclear reactions in terms of ...
... Explain and describe why the speed of light is the universal speed limit Explain, describe and discuss length contraction Describe and discuss relativistic length contraction mathematically Explain and describe the mass-energy relationship Describe and discuss nuclear reactions in terms of ...
Contents Syllabus
... A rectangular coil ABCD is rotated anticlockwise with a uniform angular velocity about the axis shown in fig., the axis of rotation of the coil as well as the magnetic field B are horizontal. The induced e.m.f. in the coil would be maximum when : (A) the plane of the coil is vertical. (B) the plane ...
... A rectangular coil ABCD is rotated anticlockwise with a uniform angular velocity about the axis shown in fig., the axis of rotation of the coil as well as the magnetic field B are horizontal. The induced e.m.f. in the coil would be maximum when : (A) the plane of the coil is vertical. (B) the plane ...
TAP414-0: Electromagnetic induction, flux and flux linkage
... Consider a conducting rod PQ moving at a steady speed v perpendicular to a field with a flux density B. An electron (negative charge e) in the rod will experience a force (= Bev) (Fleming's left hand rule) that will push it towards the end P. The same is true for other electrons in the rod, so the e ...
... Consider a conducting rod PQ moving at a steady speed v perpendicular to a field with a flux density B. An electron (negative charge e) in the rod will experience a force (= Bev) (Fleming's left hand rule) that will push it towards the end P. The same is true for other electrons in the rod, so the e ...
Magnetic field
A magnetic field is the magnetic effect of electric currents and magnetic materials. The magnetic field at any given point is specified by both a direction and a magnitude (or strength); as such it is a vector field. The term is used for two distinct but closely related fields denoted by the symbols B and H, where H is measured in units of amperes per meter (symbol: A·m−1 or A/m) in the SI. B is measured in teslas (symbol:T) and newtons per meter per ampere (symbol: N·m−1·A−1 or N/(m·A)) in the SI. B is most commonly defined in terms of the Lorentz force it exerts on moving electric charges.Magnetic fields can be produced by moving electric charges and the intrinsic magnetic moments of elementary particles associated with a fundamental quantum property, their spin. In special relativity, electric and magnetic fields are two interrelated aspects of a single object, called the electromagnetic tensor; the split of this tensor into electric and magnetic fields depends on the relative velocity of the observer and charge. In quantum physics, the electromagnetic field is quantized and electromagnetic interactions result from the exchange of photons.In everyday life, magnetic fields are most often encountered as a force created by permanent magnets, which pull on ferromagnetic materials such as iron, cobalt, or nickel, and attract or repel other magnets. Magnetic fields are widely used throughout modern technology, particularly in electrical engineering and electromechanics. The Earth produces its own magnetic field, which is important in navigation, and it shields the Earth's atmosphere from solar wind. Rotating magnetic fields are used in both electric motors and generators. Magnetic forces give information about the charge carriers in a material through the Hall effect. The interaction of magnetic fields in electric devices such as transformers is studied in the discipline of magnetic circuits.