8J Magnets and electromagnets
... A wire carrying an electric current also shows magnetic field lines around it. They obey the same rules as magnetic fields. The closer the lines are together the stronger the force. But does this attract or repel a magnet? That depends on which way the current is flowing. ...
... A wire carrying an electric current also shows magnetic field lines around it. They obey the same rules as magnetic fields. The closer the lines are together the stronger the force. But does this attract or repel a magnet? That depends on which way the current is flowing. ...
PhysicsNotes QRECT Video Version With MetaNumber Feb 19 2013.pdf
... 2 Kinematics in One Dimension ....................................................................................................................... 10 2.1 Motion of an object in space - Define velocity & acceleration .............................................................. 10 2.2 Motion of o ...
... 2 Kinematics in One Dimension ....................................................................................................................... 10 2.1 Motion of an object in space - Define velocity & acceleration .............................................................. 10 2.2 Motion of o ...
Electrostatics Review
... There is no unbalanced charge inside of conductors Charge will flow from a point of higher density to a point of lower density until the charge densities at the two points are equal. ...
... There is no unbalanced charge inside of conductors Charge will flow from a point of higher density to a point of lower density until the charge densities at the two points are equal. ...
Document
... I'm having a heck of a time wrapping my head around how this very fundamental stuff can have an "orientation". Why the heck does a magnetic field cause a force in a direction totally perpendicular to both the field and the charges movement, and whats to say the force is one way instead of the other? ...
... I'm having a heck of a time wrapping my head around how this very fundamental stuff can have an "orientation". Why the heck does a magnetic field cause a force in a direction totally perpendicular to both the field and the charges movement, and whats to say the force is one way instead of the other? ...
The phenomenon of magnetism is best understood in terms of
... parallel to and in the direction of the positive z axis. For an electron to enter this field and not be deflected by the field, the electron must be traveling in which direction? A. any direction as long as it is in the xy plane. B. any direction as long as it is in the xz plane. ...
... parallel to and in the direction of the positive z axis. For an electron to enter this field and not be deflected by the field, the electron must be traveling in which direction? A. any direction as long as it is in the xy plane. B. any direction as long as it is in the xz plane. ...
on forces
... is zero the object continues in its original state of motion; if it was at rest, it remains at rest. If it was moving with a certain velocity, it will keep on moving with the same velocity. Second Law: The acceleration of an object is proportional to the net force acting on it, and inversely propo ...
... is zero the object continues in its original state of motion; if it was at rest, it remains at rest. If it was moving with a certain velocity, it will keep on moving with the same velocity. Second Law: The acceleration of an object is proportional to the net force acting on it, and inversely propo ...
Chapter 21 Temperature, Heat and Expansion
... negatively charged and relate this to the net charge. • Understand and explain the Law of Conservation of Charge. • Describe the relation between the electrical force between two charged objects, their charge and the distance between them. (Coulomb’s Law) Find the relative strength of force given ch ...
... negatively charged and relate this to the net charge. • Understand and explain the Law of Conservation of Charge. • Describe the relation between the electrical force between two charged objects, their charge and the distance between them. (Coulomb’s Law) Find the relative strength of force given ch ...
Part I
... current carrying wire are circles concentric with the wire. • The field lines are in planes perpendicular to the wire. • The magnitude of the field is constant on a circle of radius a. • Use the right-hand rule to determine the direction of the field, as shown. Copyright © 2009 Pearson Education, In ...
... current carrying wire are circles concentric with the wire. • The field lines are in planes perpendicular to the wire. • The magnitude of the field is constant on a circle of radius a. • Use the right-hand rule to determine the direction of the field, as shown. Copyright © 2009 Pearson Education, In ...
Newtons 3rd Law of Motion
... b. Both forces exist at exactly the same time. They both start at exactly the same instant, and they both stop at exactly the same instant. They are equal in time. "opposite" means that the two forces always act in opposite DIRECTION - exactly 180o apart. ...
... b. Both forces exist at exactly the same time. They both start at exactly the same instant, and they both stop at exactly the same instant. They are equal in time. "opposite" means that the two forces always act in opposite DIRECTION - exactly 180o apart. ...
Motor Lab DRAFT 1
... When two magnets are repelling each other, their magnetic fields are pointing towards each other. Therefore a north pole of one magnet will push away from the north pole of another magnet. Similarly, two magnets are attracted to each other when their magnetic fields are pointing in the same directio ...
... When two magnets are repelling each other, their magnetic fields are pointing towards each other. Therefore a north pole of one magnet will push away from the north pole of another magnet. Similarly, two magnets are attracted to each other when their magnetic fields are pointing in the same directio ...
Lecture 28
... interestingly, it does not take the path along which it increased when the magnetic field was increasing. It takes a different path and even when the applied field has become zero, there is some remnant magnetization left. This is called “hysteresis” , which is to say that a system has memory of the ...
... interestingly, it does not take the path along which it increased when the magnetic field was increasing. It takes a different path and even when the applied field has become zero, there is some remnant magnetization left. This is called “hysteresis” , which is to say that a system has memory of the ...
P115 2010 Tutorial Questions - Physics and Engineering Physics
... A toy freight train consists of an engine and three identical cars. The train is moving to the right at constant speed along a straight, level track. Three spring scales are used to connect the cars as follows: spring scale A is located between the engine and the first car; scale B is between the fi ...
... A toy freight train consists of an engine and three identical cars. The train is moving to the right at constant speed along a straight, level track. Three spring scales are used to connect the cars as follows: spring scale A is located between the engine and the first car; scale B is between the fi ...
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.