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PowerPoint
PowerPoint

... forces are equal in magnitude and opposite in direction. ε evB = eE = e ...
Electromagnetic Field Energy - Physics Department, Princeton
Electromagnetic Field Energy - Physics Department, Princeton

PowerPoint
PowerPoint

... Both lines have identical charge densities +l C/m. Point A is equidistant from both lines and Point B is located above the top line as shown. How does EA, the magnitude of the electric field at point A compare to EB, the magnitude of the electric field at point B? ...
PHYS2012
PHYS2012

Sample Only 1 2007 Courses\HSGPC\Coursebook\Physics © MedPrep International 2007
Sample Only 1 2007 Courses\HSGPC\Coursebook\Physics © MedPrep International 2007

Work, KE, E - Rose
Work, KE, E - Rose

... If we consider the force F = qE acting on a particle in the presence of some electrical potential energy Uel, then we have qE = - grad Uel . Dividing by q gives E = - grad Uel/q . But, the electrical potential energy per unit charge is the 'electric potential', V ! So E = - grad V = - V . This rela ...
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Exam I

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Content Statement

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Lecture notes

... Q>0  V>0 Q<0  V<0 Do not forget the signs! Potential goes to 0 at infinity. Equipotentials of a point charge are concentric spheres. Lecture V ...
Electric Charge and Static Electricity Reading
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Chap18-Cutnell
Chap18-Cutnell

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An electric circuit

... A load commonly converts the electrical energy from the source into some other forms of energy. For instance, a lamp changes electrical energy into light and heat, or an electric motor changes electrical energy into mechanical energy. So a load can be any electrical device. A continuous path for the ...
Guess Paper – 2012 Class – XII Subject – Physics What happens if
Guess Paper – 2012 Class – XII Subject – Physics What happens if

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RIGHT-HAND RULE

... occurs. A list of physical quantities whose directions are related by the right-hand rule is given below.  The angular velocity of a rotating object and the rotational velocity of any point on the object  A torque, the force that causes it, and the position of the point of application of the force ...
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c5011_x4_Chabay

... scattering off a gold nucleus, and to plot x and y components of the momentum of each object vs. time. (In the program the gold nucleus does recoil, but it has not moved far enough to leave a visible trail.) The basic algorithm for Rutherford scattering, spacecraft orbits, and the 3D massspring syst ...
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HUJI Syllabus

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Electrostatics Test Review

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Physics 2B Sample Midterm Exam #1 by Todd Sauke

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Chapter 23

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lecture 2 PDF document

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Chapters 16 and 17

... 1. Field lines indicate the direction of the field; the field is tangent to the line. 2. The magnitude of the field is proportional to the density of the lines. 3. Field lines start on positive charges and end on negative charges; the number is proportional to the magnitude of the charge. ...
Final Exam Review – SPH 4U1
Final Exam Review – SPH 4U1

... 5. A negative charge of 2.4  10–6 C experiences an electric force of magnitude 3.2 N, acting to the left. What is the ...
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Electrostatics



Electrostatics is a branch of physics that deals with the phenomena and properties of stationary or slow-moving electric charges with no acceleration.Since classical physics, it has been known that some materials such as amber attract lightweight particles after rubbing. The Greek word for amber, ήλεκτρον electron, was the source of the word 'electricity'. Electrostatic phenomena arise from the forces that electric charges exert on each other. Such forces are described by Coulomb's law.Even though electrostatically induced forces seem to be rather weak, the electrostatic force between e.g. an electron and a proton, that together make up a hydrogen atom, is about 36 orders of magnitude stronger than the gravitational force acting between them.There are many examples of electrostatic phenomena, from those as simple as the attraction of the plastic wrap to your hand after you remove it from a package, and the attraction of paper to a charged scale, to the apparently spontaneous explosion of grain silos, the damage of electronic components during manufacturing, and the operation of photocopiers. Electrostatics involves the buildup of charge on the surface of objects due to contact with other surfaces. Although charge exchange happens whenever any two surfaces contact and separate, the effects of charge exchange are usually only noticed when at least one of the surfaces has a high resistance to electrical flow. This is because the charges that transfer to or from the highly resistive surface are more or less trapped there for a long enough time for their effects to be observed. These charges then remain on the object until they either bleed off to ground or are quickly neutralized by a discharge: e.g., the familiar phenomenon of a static 'shock' is caused by the neutralization of charge built up in the body from contact with insulated surfaces.
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