Millikan Oil Drop - University of Colorado Boulder
... 2. Compute the fall velocity !! , assuming that the radius and density are as given by the manufacturer. Use Eqs. (3), (4), and (5). Knowing !! , you can compute how long a droplet should take to ...
... 2. Compute the fall velocity !! , assuming that the radius and density are as given by the manufacturer. Use Eqs. (3), (4), and (5). Knowing !! , you can compute how long a droplet should take to ...
Question bank Physics Class XII
... A uniform electric field 8. Derive an expression for the electric potential at a distance r from a point charge q. 9. Derive an expression for the electric potential due to an electric dipole on axial line and equatorial line. 10. What are dielectrics? Distinguish between polar and non-polar dielect ...
... A uniform electric field 8. Derive an expression for the electric potential at a distance r from a point charge q. 9. Derive an expression for the electric potential due to an electric dipole on axial line and equatorial line. 10. What are dielectrics? Distinguish between polar and non-polar dielect ...
Wednesday, July 29, 2009
... • While the original field lines still propagates away from the rod reaching out far – Since the original field propagates through an empty space, the field lines must form a closed loop (no charge exist) − Since changing electric and magnetic fields produce changing magnetic and electric fields, th ...
... • While the original field lines still propagates away from the rod reaching out far – Since the original field propagates through an empty space, the field lines must form a closed loop (no charge exist) − Since changing electric and magnetic fields produce changing magnetic and electric fields, th ...
1 Fig.3.6 An arbitrary electron distribution along the x
... In t , half of the electrons in segment (1) to the left of x 0 would move into segment (2), and in the same time, half of the electrons in segment (2) to the right of x 0 would move into segment (1). Therefore, the net number of electrons moving from segment (1) to segment (2) through x 0 within ...
... In t , half of the electrons in segment (1) to the left of x 0 would move into segment (2), and in the same time, half of the electrons in segment (2) to the right of x 0 would move into segment (1). Therefore, the net number of electrons moving from segment (1) to segment (2) through x 0 within ...
ppt - UZH-Particle Physics at CERN
... linear electric field approximation and, hence, constant effective dopant concentration assumption doesn’t correctly describe the physics in the heavily irradiated silicon detector. There are models predicting non-linear electric filed in heavily irradiated silicon: the main idea that the thermally ...
... linear electric field approximation and, hence, constant effective dopant concentration assumption doesn’t correctly describe the physics in the heavily irradiated silicon detector. There are models predicting non-linear electric filed in heavily irradiated silicon: the main idea that the thermally ...
Solutions
... 9. Rail guns have been suggested for launching projectiles into space without chemical rockets and for ground-to-air antimissile weapons of war. A tabletop model rail gun consists of two long, parallel, horizontal rails 3.50 cm apart, bridged by a bar BD of mass 3.00 g. The bar is originally at res ...
... 9. Rail guns have been suggested for launching projectiles into space without chemical rockets and for ground-to-air antimissile weapons of war. A tabletop model rail gun consists of two long, parallel, horizontal rails 3.50 cm apart, bridged by a bar BD of mass 3.00 g. The bar is originally at res ...
Review Faraday’s Law of Induction in words is !
... ! Eddy currents are often undesirable and steps are taken to minimize them by segmenting or laminating an electrical device that must operate in an environment of changing magnetic fields ...
... ! Eddy currents are often undesirable and steps are taken to minimize them by segmenting or laminating an electrical device that must operate in an environment of changing magnetic fields ...
PHYSICS 11 – General Physics
... turntable until a rate of 58 rpm is reached, at which point the coin slides off. What is the coefficient of static friction between the coin and the turntable? 8. Calculate the force of gravity on a spacecraft 12,800 km above the earth’s surface if its mass is 850 kg. 9. What minimum speed must a ro ...
... turntable until a rate of 58 rpm is reached, at which point the coin slides off. What is the coefficient of static friction between the coin and the turntable? 8. Calculate the force of gravity on a spacecraft 12,800 km above the earth’s surface if its mass is 850 kg. 9. What minimum speed must a ro ...
A2 Unit G485: Fields, particles and frontiers of physics
... (b) (i) Good. The current in the primary coil produces the magnetic field, and therefore the current and the flux must be in step with each other. Since you had no values for the flux, the graph for the current could have been greater or smaller than that for the flux. (ii) In the first line you cou ...
... (b) (i) Good. The current in the primary coil produces the magnetic field, and therefore the current and the flux must be in step with each other. Since you had no values for the flux, the graph for the current could have been greater or smaller than that for the flux. (ii) In the first line you cou ...
Continuity Equation
... Excess carriers in s/c cause non-equilibrium condition, where most of s/c devices operate under this circumstances. Carriers may be generated by: forward-bias of p-n junction, incident light, and impact ionization. Continuity equation – the governing equation for the rate of charge carriers. Thermio ...
... Excess carriers in s/c cause non-equilibrium condition, where most of s/c devices operate under this circumstances. Carriers may be generated by: forward-bias of p-n junction, incident light, and impact ionization. Continuity equation – the governing equation for the rate of charge carriers. Thermio ...
chap 21 magnetism
... magnetic Field • The magnetic force exerted on a positive charge is in the opposite direction of the force exerted on a negative charge moving in the same direction • The magnitude of the magnetic force exerted on the moving particle is proportional to sin where is the angle the particles veloci ...
... magnetic Field • The magnetic force exerted on a positive charge is in the opposite direction of the force exerted on a negative charge moving in the same direction • The magnitude of the magnetic force exerted on the moving particle is proportional to sin where is the angle the particles veloci ...
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.