Lecture 8 ppt version
... rapidly. If a positive test charge q0 is in an electric field, it accelerates in the direction of the field. If it is released from rest, its kinetic energy increases and its potential energy decreases. ...
... rapidly. If a positive test charge q0 is in an electric field, it accelerates in the direction of the field. If it is released from rest, its kinetic energy increases and its potential energy decreases. ...
Electromagnetic Induction
... Faraday’s goal was “to create electricity from magnetism”. His experiments did that. Later, other scientists and engineers used the phenomenon of E.M.I. to develop practical generators. Today those supply the electricity that we use in daily life. ...
... Faraday’s goal was “to create electricity from magnetism”. His experiments did that. Later, other scientists and engineers used the phenomenon of E.M.I. to develop practical generators. Today those supply the electricity that we use in daily life. ...
Electric Potential Difference
... Electric field (E) is defined as the aura about the space surrounding a charged object that exerts an electrical influence upon other charged objects in that space. The direction of the electric field is a vector w i t h a direction pointing out from a + positive test charge. It also represents the ...
... Electric field (E) is defined as the aura about the space surrounding a charged object that exerts an electrical influence upon other charged objects in that space. The direction of the electric field is a vector w i t h a direction pointing out from a + positive test charge. It also represents the ...
Equipotentials and Lines of Force
... Draw smooth curves through or close to the points on your graph that correspond to identical voltages. These curves represent equipotential surfaces. Use a pen or pencil of a different color and draw the lines of force of the electric field. When drawing the field lines remember that (1) the field l ...
... Draw smooth curves through or close to the points on your graph that correspond to identical voltages. These curves represent equipotential surfaces. Use a pen or pencil of a different color and draw the lines of force of the electric field. When drawing the field lines remember that (1) the field l ...
Electric Forces and Electric Fields
... A charged rubber rod brought near a metal sphere and the charge on the sphere is redistributed. If it is grounded, some of the electrons travel to the wire through the ground. As wire is removed, the sphere has an excess of positive charge. Electrons redistribute evenly on surface of sphere as rod i ...
... A charged rubber rod brought near a metal sphere and the charge on the sphere is redistributed. If it is grounded, some of the electrons travel to the wire through the ground. As wire is removed, the sphere has an excess of positive charge. Electrons redistribute evenly on surface of sphere as rod i ...
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... 29) An electron is moving with a velocity v=5.47X106 m/s at right angles to a magnetic field of strength 6.35 X 10-‐2 T. What is the magnitude of the force acting on the electron? a ...
... 29) An electron is moving with a velocity v=5.47X106 m/s at right angles to a magnetic field of strength 6.35 X 10-‐2 T. What is the magnitude of the force acting on the electron? a ...
Gauss` Law
... Define E2 to be equal to the magnitude of the electric field at r = 1.4 cm when the charge on the outer shell (q2) is equal to 1.1 μC. Define Eo to be equal to the magnitude of the electric field at r = 1.4 cm if the charge on the outer shell (q2) were changed to 0. Compare E2 and Eo. E2 = Eo Since ...
... Define E2 to be equal to the magnitude of the electric field at r = 1.4 cm when the charge on the outer shell (q2) is equal to 1.1 μC. Define Eo to be equal to the magnitude of the electric field at r = 1.4 cm if the charge on the outer shell (q2) were changed to 0. Compare E2 and Eo. E2 = Eo Since ...
Ch 24 Electric Potential
... On nonspherical conductors, a surface charge does not distribute itself uniformly over the surface of the conductor. At sharp points or edges, the surface charge density—and thus the external electric field, —may reach very high values. The air around such sharp points or edges may become ionized, p ...
... On nonspherical conductors, a surface charge does not distribute itself uniformly over the surface of the conductor. At sharp points or edges, the surface charge density—and thus the external electric field, —may reach very high values. The air around such sharp points or edges may become ionized, p ...
chapter 33 electric field
... Chapter 33: Electric field. • Define an electric field. – An electric field is the space around an electric charge where electric force of attraction or repulsion can be felt by another charge. – Electric field around a charge is represented by electric field lines ...
... Chapter 33: Electric field. • Define an electric field. – An electric field is the space around an electric charge where electric force of attraction or repulsion can be felt by another charge. – Electric field around a charge is represented by electric field lines ...
Electric Potential and Capacitance
... As a ball rolls downhill, the gravitational field does work on the ball due to the unbalanced force (weight) acting on the ball, causing it to gain speed (and kinetic energy). We say that potential energy stored in the field between the ball and Earth is converted into kinetic energy. ...
... As a ball rolls downhill, the gravitational field does work on the ball due to the unbalanced force (weight) acting on the ball, causing it to gain speed (and kinetic energy). We say that potential energy stored in the field between the ball and Earth is converted into kinetic energy. ...
Imagine a universe where the force of gravity is repulsive, not
... We can also define a field in terms of vectors. He learned this in our ...
... We can also define a field in terms of vectors. He learned this in our ...
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.