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... where F is the force between two charges q1 and q2 d is the distance between them is the permittivity of the material between them ( a constant) Electric Current: An electric current is a flow of charge. (A) I = q/t ( 1 Amp = 1 Coulomb per second) Resistance: The ratio of voltage to current ...
Test Charge - physics1516
Test Charge - physics1516

File
File

The atom in electric field
The atom in electric field

The Thomas precession factor in spin–orbit interaction
The Thomas precession factor in spin–orbit interaction

... but is of the same order of magnitude: An electric field with a component perpendicular to the electron velocity causes an additional acceleration of the electron perpendicular to its instantaneous velocity, leading to a curved electron trajectory. In essence, the electron moves in a rotating frame ...
magnetism
magnetism

Tutorial 5
Tutorial 5

... Both an electric motor and a generator consist of coils of wire on a rotor that can spin in a magnetic field. The basic difference between the two is whether electric energy is the input and mechanical energy the output (a motor), or mechanical energy is the input and electric energy the output (a g ...
Slide 1
Slide 1

...  Much like gravitational and electric fields  Can be non-contact forces  Magnetic fields are vector quantities that exist in a region in space where a magnetic force occurs. ...
The Double Helix Theory of the Magnetic Field
The Double Helix Theory of the Magnetic Field

... Abstract. The historical linkage between optics and electromagnetism can be traced back to a paper published in the year 1856 by Wilhelm Eduard Weber and Rudolf Kohlrausch. By discharging a Leyden Jar (a capacitor), they showed that the ratio of the electromagnetic and electrostatic units of charge ...
PPT - LSU Physics & Astronomy
PPT - LSU Physics & Astronomy

... Fig. 32-5 (a) A circular parallel-plate capacitor, shown in side view, is being charged by a constant current i. (b) A view from within the capacitor, looking toward the plate at the right in (a).The electric field is uniform, is directed into the page (toward the plate), and grows in magnitude as t ...
Chapter 20
Chapter 20

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Pitching Pennies into a Magnet 1 Problem 2 Solution

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Pretest 1

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... One of the most important discoveries related to current was made accidentally by Hans Christian Ørsted in 1820. During a lecture, Ørsted noticed a compass needle deflected from magnetic north when an electric current from a battery was switched on and off, confirming a direct relationship between e ...
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Slide 1

... Electromagnetic Force • The different parts have different electromagnetic charge – The charge of electrons act similar to magnets – Opposite charges attract while like charges repel each other. • Protons have a positive charge • Electrons have a negative charge • Neutrons have no charge ...
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sgFS2010

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Electric Motors

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Magnetism Unit

... 1. Define magnetism as a force that attracts iron, nickel or cobalt. 2. State that magnetic force is invisible. 3. Identify magnets as either bar or horseshoe based on shape. 4. Name the poles of magnets as north or south. 5. Given a drawing of a magnet, draw lines representing magnetic force lines. ...
Magnetism and Electricity
Magnetism and Electricity

Phys66pap2
Phys66pap2

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Motion Along a Straight Line at Constant

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Electricity and Magnetism Summary Notes

AP Physics I - Southern Regional School District
AP Physics I - Southern Regional School District

... object caused by torques exerted on the object Plan data collection and analysis strategies designed to test the relationship between torques exerted on an object and the change in angular momentum of that object Explain that waves transfer energy without transferring matter The energy of an electro ...
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Electromagnetism



Electromagnetism is a branch of physics which involves the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles. The electromagnetic force usually shows electromagnetic fields, such as electric fields, magnetic fields, and light. The electromagnetic force is one of the four fundamental interactions in nature. The other three fundamental interactions are the strong interaction, the weak interaction, and gravitation.The word electromagnetism is a compound form of two Greek terms, ἤλεκτρον, ēlektron, ""amber"", and μαγνῆτις λίθος magnētis lithos, which means ""magnesian stone"", a type of iron ore. The science of electromagnetic phenomena is defined in terms of the electromagnetic force, sometimes called the Lorentz force, which includes both electricity and magnetism as elements of one phenomenon.The electromagnetic force plays a major role in determining the internal properties of most objects encountered in daily life. Ordinary matter takes its form as a result of intermolecular forces between individual molecules in matter. Electrons are bound by electromagnetic wave mechanics into orbitals around atomic nuclei to form atoms, which are the building blocks of molecules. This governs the processes involved in chemistry, which arise from interactions between the electrons of neighboring atoms, which are in turn determined by the interaction between electromagnetic force and the momentum of the electrons.There are numerous mathematical descriptions of the electromagnetic field. In classical electrodynamics, electric fields are described as electric potential and electric current in Ohm's law, magnetic fields are associated with electromagnetic induction and magnetism, and Maxwell's equations describe how electric and magnetic fields are generated and altered by each other and by charges and currents.The theoretical implications of electromagnetism, in particular the establishment of the speed of light based on properties of the ""medium"" of propagation (permeability and permittivity), led to the development of special relativity by Albert Einstein in 1905.Although electromagnetism is considered one of the four fundamental forces, at high energy the weak force and electromagnetism are unified. In the history of the universe, during the quark epoch, the electroweak force split into the electromagnetic and weak forces.
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