LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 1. Define relative permittivity. 2. Compute the electric field due at a distance of 2 x10-8 m on a line making an angle of 450 with the dipole axis from the centre of the dipole, the dipole moment, p = 6.4 x 10 -29 m. 3. Define equivalent conductivity of an electrolyte. 4. A reversible cell has an e ...
... 1. Define relative permittivity. 2. Compute the electric field due at a distance of 2 x10-8 m on a line making an angle of 450 with the dipole axis from the centre of the dipole, the dipole moment, p = 6.4 x 10 -29 m. 3. Define equivalent conductivity of an electrolyte. 4. A reversible cell has an e ...
Magnetostatics – Magnetic Flux Density
... From this characteristic of magnetic fields, it is easy to see that the net magnetic flux passing through a Gaussian surface (a closed surface as shown in Figure 3.26) must be zero. What goes into the surface must come back out. Thus we have Gauss’s law for static magnetic fields ...
... From this characteristic of magnetic fields, it is easy to see that the net magnetic flux passing through a Gaussian surface (a closed surface as shown in Figure 3.26) must be zero. What goes into the surface must come back out. Thus we have Gauss’s law for static magnetic fields ...
Part One: Light Waves, Photons, and Bohr Theory A. The Wave
... If ν is below νο, no e ejected no matter how bright (or intense) the light source. ...
... If ν is below νο, no e ejected no matter how bright (or intense) the light source. ...
Blank Jeopardy - prettygoodphysics
... Points R and S are each the same distance d from two unequal charges, +Q and +2Q, as shown above. The work required to move a charge -Q from point R to point S is (A) dependent on the path taken from R to S (B) directly proportional to the distance between R and S (C) positive ( D) zero (E) negati ...
... Points R and S are each the same distance d from two unequal charges, +Q and +2Q, as shown above. The work required to move a charge -Q from point R to point S is (A) dependent on the path taken from R to S (B) directly proportional to the distance between R and S (C) positive ( D) zero (E) negati ...
27. Current in a Magnetic Field
... In 1819 the Danish physicist Hans Christian Oersted discovered that an electric current flowing through a wire deflected a compass needle. A year later the Frenchman François Arago found that a wire carrying an electric current acted as a magnet and could attract iron filings. Soon his compatriot An ...
... In 1819 the Danish physicist Hans Christian Oersted discovered that an electric current flowing through a wire deflected a compass needle. A year later the Frenchman François Arago found that a wire carrying an electric current acted as a magnet and could attract iron filings. Soon his compatriot An ...
Document
... always continuous. Hence an extension of earliest concepts for steady current need to be developed. The current in a vacuum capacitor is neither the conduction current nor the convection current, but it is actually the displacement electric current. Gauss’ law for electrostatic fields, D dS ...
... always continuous. Hence an extension of earliest concepts for steady current need to be developed. The current in a vacuum capacitor is neither the conduction current nor the convection current, but it is actually the displacement electric current. Gauss’ law for electrostatic fields, D dS ...
Chapter 29: Magnetic Fields
... An important difference between electric charges and magnetic poles is that poles are ALWAYS found in pairs (N,S) while single electric charges (positive or negative) can be isolated. For example, if you cut a bar magnet in half each piece will have a N and S pole! 2) The forces between magnets are ...
... An important difference between electric charges and magnetic poles is that poles are ALWAYS found in pairs (N,S) while single electric charges (positive or negative) can be isolated. For example, if you cut a bar magnet in half each piece will have a N and S pole! 2) The forces between magnets are ...
Newton`s Third Law
... objects hit each other, they exert equal and opposite forces on each other. The effect of the force is not always the same. ...
... objects hit each other, they exert equal and opposite forces on each other. The effect of the force is not always the same. ...
PPT - LSU Physics & Astronomy
... Radiation Pressure Waves not only carry energy but also momentum. The effect is very small (we don’t ordinarily feel pressure from light). If light is completely absorbed during an interval Δt, the momentum Transferred Δp is given by Du and twice as much if reflected. Dp = Newton’s law: ...
... Radiation Pressure Waves not only carry energy but also momentum. The effect is very small (we don’t ordinarily feel pressure from light). If light is completely absorbed during an interval Δt, the momentum Transferred Δp is given by Du and twice as much if reflected. Dp = Newton’s law: ...
Magnets Review
... Magnetic Theory • In a non-magnetized ferromagnetic substance, these domains are in a random order. • When these substances are placed in a magnetic field, their domains will align in the same direction as the field, and become magnetized! – The moment the magnetic field is removed, ferromagnetic s ...
... Magnetic Theory • In a non-magnetized ferromagnetic substance, these domains are in a random order. • When these substances are placed in a magnetic field, their domains will align in the same direction as the field, and become magnetized! – The moment the magnetic field is removed, ferromagnetic s ...
Magnetism - Physics: 1(AE) 2(B,D)
... This is how an electric motor works… An electric motor utilizes the property of electromagnetic induction to convert electricity into mechanical energy to make things move. The conductor itself, a coiled wire, will move to oppose the magnetic field. Just when it gets into position the current is re ...
... This is how an electric motor works… An electric motor utilizes the property of electromagnetic induction to convert electricity into mechanical energy to make things move. The conductor itself, a coiled wire, will move to oppose the magnetic field. Just when it gets into position the current is re ...
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.