'Excess electrons' presentation slideshows

Charging by Conduction

Charging by Conduction. Physics Coach Stephens. Charging by Conduction. Charging by conduction involves the contact of a charged object to a neutral object. Suppose that a positively charged aluminum plate is touched to a neutral metal sphere.

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Bipolar Junction transistor

Holes and electrons determine device characteristics. Three terminal device Control of two terminal currents. Bipolar Junction transistor. Amplification and switching through 3 rd contact. V. I. p. n. I. V. I 0. How can we make a BJT from a pn diode?.

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Electron-Specimen Interactions

Electron-Specimen Interactions. SEM Setup. Electron/Specimen Interactions. When the electron beam strikes a sample, both photon and electron signals are emitted. Incident Beam. Primary backscattered electrons. X-rays Through thickness composition info. Atomic number and topographical.

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Conductors & Insulators

Conductors & Insulators. Physics 2/4/13-2/8/13 Coach Stephens. Conductors. The behavior of an object that has been charged is dependent upon whether the object is made of a conductive or a non-conductive material.

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Announcements

Announcements. Use this power point to complete your notes for this unit. Work on the questions that we did not do for the last homework quiz. From your textbook, P491 #1,3,4,11,12,17,21 Please, be responsible and do this! Go to the following website and try some of the activities!

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Lewis Dot Structures

Lewis Dot Structures. Gilbert Lewis One of Americas most influential Chemist . Lewis Dot Structures. Gilbert Lewis One of Americas most influential Chemist .

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ELECTROSTICS

ELECTROSTICS. When I was a primary student,my teacher told me to rub my plastic ruler by using a piece of cloth. As a result, the ruler attracted pieces of small paper automatically. WHY?. Section 1 Electric charges and forces.

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The 6th School on Simulation and Modeling Physics "Ab-initio methods and their applications"

The 6th School on Simulation and Modeling Physics "Ab-initio methods and their applications" Hanoi, 27 - 29 November 2007. Ab-initio molecular dynamics in atmospheric science. Sandro Scandolo The Abdus Salam International Center for Theoretical Physics Trieste, Italy

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Chemical Reaction on the Born-Oppenheimer surface and beyond

Chemical Reaction on the Born-Oppenheimer surface and beyond. ISSP Osamu Sugino. FADFT WORKSHOP 26 th July. Chemical Reaction. On the (ground state) Born-Oppenheimer surface Thermally activated process : Classical Beyond: excited state potential surface Non-adiabatic reaction : Quantum

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Research Area

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Chap 6. Nonequilibrium Excess Carriers in Semiconductor

Chap 6. Nonequilibrium Excess Carriers in Semiconductor. Carrier Generation and Recombination Continuity Equation Ambipolar Transport Quasi-Fermi Energy Levels Excess-Carrier Lifertime Surface Effects. Nonequilibrium.

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Restless Electrons

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Nano-electronics:

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Final exam preview

Final exam preview. A boat at anchor is rocked by waves whose crests are 3 m apart and whose speed is 5 m/s . How often do these waves reach the boat ? A 40 ? and an 28 ? resistor are connected to a 48-V power source.

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Origins of Charge

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What day is it again?

What day is it again?. The subatomic particle that has a positive charge is called the ______________ ? The subatomic particle that is able to move to create a positive charge is called the _____________ ?

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Electric Field Quiz

Electric Field Quiz. (3 points each). Draw the electric field lines between two plates that have the same charge. (T/F) Electric fields become stronger as you leave the object emitting the field. (T/F) The electric field on the inside of a sphere is zero.

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A Simple Battery

A Simple Battery. A battery uses two different materials (usually metals) for the anode and cathode, immersed in an electrolyte (usually an acid in solution). . e lectron flow.

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