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View File - UET Taxila
View File - UET Taxila

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per

∙ Address Correlate Evaluate Affect Debate Explain Analyze Deduce
∙ Address Correlate Evaluate Affect Debate Explain Analyze Deduce

...   maxima, and explain qualitatively why a multiple­slit grating is better than a two­slit grating for making      accurate determinations of wavelength.  State under what conditions a phase reversal occurs when light is reflected from the interface between two     media of different indices of refra ...
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sourcelessness of the magnetic field
sourcelessness of the magnetic field

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File

... (ELEMENTARY CHARGE! - one proton moving through one potential difference of one volt creates one electron volt - it just basically simplifies the math involved). Equipotential Diagrams - analogous to a topographic map - showing lines of equal potential (V) just as a topographic map shows contours of ...
Tutorial: 2009 Space Physics Seminar
Tutorial: 2009 Space Physics Seminar

... satellite are shown. Top 4 panels give energy and pitch angle of electrons and ions (red is most intense; 180 degrees is upward). Next is perpendicular electric field. Strong perpendicular fields always are seen in ...
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CLASS 17. : T

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E2 ELECTRIC POTENTIAL

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Magnetic field of the Earth

... but the magnetic field outside is relatively weak. Solenoids have many useful applications since they are magnetic only when they carry a current. The polarity of a solenoid can be found the same way you found the polarity of a current carrying loop. Coil your fingers in the direction of the current ...
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Chapter 30

... Parallel conductors carrying current in opposite directions repel each other ...
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Multilayer Reflectivity

... The physical fields are obtained by taking the real parts of the corresponding ~ ~k, ω) are in general complex complex fields. The amplitudes such as E( ~ ~k, ω) corresponds to a phase shift of the wave. valued where the phase of E( If the medium is a lossy one, then ~k will also be a complex (bi-) ...
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9. Electric potential - McMaster Physics and Astronomy

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Exam I, vers

... You must fill out your bubble sheet according to the following instructions or you will automatically lose 10 points. Check each box as you complete the instructions. Please circle your TA's name above. Print and bubble in your name on the bubble sheet. Print and bubble in your student Identificatio ...
Magnetic Fields
Magnetic Fields

... exerted on the particle is proportional to the charge, q, and to the speed, v, of the particle When a charged particle moves parallel to the magnetic field vector, the magnetic force acting on the particle is zero When the particle’s velocity vector makes any angle q 0 with the field, the force ac ...
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Dynamic Line Integral Convolution: A Guide to the Java Software

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Electromagnetic Induction Lab

... Electromagnetic Induction Lab Introduction: In 1831, Michael Faraday - after many experiments - discovered that he could create a current in a wire by moving it through a magnetic field. In principle, he determined that whenever the magnetic field was changing perpendicular to a conductor that a cur ...
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... potential by 2 V, so the electric field performs 2 J of work on each coulomb of positive charge that moves. Moving from C to D decreases the electric potential by 1 V, so 1 J of work is done by the field. It takes no work to move the charge from A to B because the electric potential does not change. ...
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How and Why Inertial Mass and Gravitational Mass

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2 Electrostatics

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Assessment of electromagnetic radiation for second and

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General Physics II

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MANCHESTER COMMUNITY COLLEGE Course Content Outline

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Performance Benchmark E

... electrically charged particles that occur due to their charge and for the emission and absorption of photons. An electromagnetic force generates an electromagnetic field, which exerts on electrically charged particles. Electricity and magnetism are two aspects of a single electromagnetic force. On t ...
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Field (physics)



In physics, a field is a physical quantity that has a value for each point in space and time. For example, on a weather map, the surface wind velocity is described by assigning a vector to each point on a map. Each vector represents the speed and direction of the movement of air at that point. As another example, an electric field can be thought of as a ""condition in space"" emanating from an electric charge and extending throughout the whole of space. When a test electric charge is placed in this electric field, the particle accelerates due to a force. Physicists have found the notion of a field to be of such practical utility for the analysis of forces that they have come to think of a force as due to a field.In the modern framework of the quantum theory of fields, even without referring to a test particle, a field occupies space, contains energy, and its presence eliminates a true vacuum. This lead physicists to consider electromagnetic fields to be a physical entity, making the field concept a supporting paradigm of the edifice of modern physics. ""The fact that the electromagnetic field can possess momentum and energy makes it very real... a particle makes a field, and a field acts on another particle, and the field has such familiar properties as energy content and momentum, just as particles can have"". In practice, the strength of most fields has been found to diminish with distance to the point of being undetectable. For instance the strength of many relevant classical fields, such as the gravitational field in Newton's theory of gravity or the electrostatic field in classical electromagnetism, is inversely proportional to the square of the distance from the source (i.e. they follow the Gauss's law). One consequence is that the Earth's gravitational field quickly becomes undetectable on cosmic scales.A field can be classified as a scalar field, a vector field, a spinor field or a tensor field according to whether the represented physical quantity is a scalar, a vector, a spinor or a tensor, respectively. A field has a unique tensorial character in every point where it is defined: i.e. a field cannot be a scalar field somewhere and a vector field somewhere else. For example, the Newtonian gravitational field is a vector field: specifying its value at a point in spacetime requires three numbers, the components of the gravitational field vector at that point. Moreover, within each category (scalar, vector, tensor), a field can be either a classical field or a quantum field, depending on whether it is characterized by numbers or quantum operators respectively. In fact in this theory an equivalent representation of field is a field particle, namely a boson.
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