CHAPTER 17 17.1 Electric forces 17.2 Coulombs Law 17.3 Electric
... • The motion of an electron around a nucleus can be pictured as a tiny current loop – The radius is approximately the radius of the atom – The direction of the resulting magnetic field is determined by the orientation of the current loop • Using right-hand rule 1 ...
... • The motion of an electron around a nucleus can be pictured as a tiny current loop – The radius is approximately the radius of the atom – The direction of the resulting magnetic field is determined by the orientation of the current loop • Using right-hand rule 1 ...
Q3APPhysicsReviewList
... With the equation sheets in front of you, you should be able to… Chapter 16 ▸ Understand the concept of electric charge, so you can: ☐ Describe the types of charge and the attraction and repulsion of charges. ☐ Describe polarization and induced charges. ☐ Describe the process of charging by inductio ...
... With the equation sheets in front of you, you should be able to… Chapter 16 ▸ Understand the concept of electric charge, so you can: ☐ Describe the types of charge and the attraction and repulsion of charges. ☐ Describe polarization and induced charges. ☐ Describe the process of charging by inductio ...
phys1444-lec4
... Long uniform line of charge: A very long straight wire possesses a uniform positive charge per unit length, l. Calculate the electric field at points near but outside the wire, far from the ends. • Which direction do you think the field due to the charge on the wire is? – Radially outward from the w ...
... Long uniform line of charge: A very long straight wire possesses a uniform positive charge per unit length, l. Calculate the electric field at points near but outside the wire, far from the ends. • Which direction do you think the field due to the charge on the wire is? – Radially outward from the w ...
Chapter 5
... • Speed of light does not depends on color. It is the same for all the colors. • The energy light carries depends on its color. Red is low energy. Blue is high energy. ...
... • Speed of light does not depends on color. It is the same for all the colors. • The energy light carries depends on its color. Red is low energy. Blue is high energy. ...
Slide 1
... 17.8 Dielectrics A dielectric is an insulator, and is characterized by a dielectric constant K. Capacitance of a parallel-plate capacitor filled with dielectric: ...
... 17.8 Dielectrics A dielectric is an insulator, and is characterized by a dielectric constant K. Capacitance of a parallel-plate capacitor filled with dielectric: ...
Fall.2008.Week5.Lesson.1 - reich
... • OK, talking about that mass is obnoxious. So chemists came up with another scheme. They took an atom of Carbon, which has 6 neutrons and 6 protons, and they said 1/12 of that mass is now 1 amu. • Protons by themselves have a mass of 1.0073 amu. Neutrons have a mass of 1.0087 amu. ...
... • OK, talking about that mass is obnoxious. So chemists came up with another scheme. They took an atom of Carbon, which has 6 neutrons and 6 protons, and they said 1/12 of that mass is now 1 amu. • Protons by themselves have a mass of 1.0073 amu. Neutrons have a mass of 1.0087 amu. ...
Electric charge
Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. There are two types of electric charges: positive and negative. Positively charged substances are repelled from other positively charged substances, but attracted to negatively charged substances; negatively charged substances are repelled from negative and attracted to positive. An object is negatively charged if it has an excess of electrons, and is otherwise positively charged or uncharged. The SI derived unit of electric charge is the coulomb (C), although in electrical engineering it is also common to use the ampere-hour (Ah), and in chemistry it is common to use the elementary charge (e) as a unit. The symbol Q is often used to denote charge. The early knowledge of how charged substances interact is now called classical electrodynamics, and is still very accurate if quantum effects do not need to be considered.The electric charge is a fundamental conserved property of some subatomic particles, which determines their electromagnetic interaction. Electrically charged matter is influenced by, and produces, electromagnetic fields. The interaction between a moving charge and an electromagnetic field is the source of the electromagnetic force, which is one of the four fundamental forces (See also: magnetic field).Twentieth-century experiments demonstrated that electric charge is quantized; that is, it comes in integer multiples of individual small units called the elementary charge, e, approximately equal to 6981160200000000000♠1.602×10−19 coulombs (except for particles called quarks, which have charges that are integer multiples of e/3). The proton has a charge of +e, and the electron has a charge of −e. The study of charged particles, and how their interactions are mediated by photons, is called quantum electrodynamics.