Teaching ideas for Topic 5: Electricity and magnetism, Core
... Examine current in a variety of slightly unusual situations. Examples are: calculate the current from a metallic plate of area 5.0 cm2 when the number of electrons leaving the surface is 3.8 1016 m–2 s–1. Answer: number of electrons leaving per second is 5.0 10–4 3.8 1016 = 1.9 1013 s–1 an ...
... Examine current in a variety of slightly unusual situations. Examples are: calculate the current from a metallic plate of area 5.0 cm2 when the number of electrons leaving the surface is 3.8 1016 m–2 s–1. Answer: number of electrons leaving per second is 5.0 10–4 3.8 1016 = 1.9 1013 s–1 an ...
Lecture 3
... Current – Conventional current flow If you Google “current” or look in a friends electrical engineering book, you might find that current flows from positive to negative. A few perspectives on this include: ...
... Current – Conventional current flow If you Google “current” or look in a friends electrical engineering book, you might find that current flows from positive to negative. A few perspectives on this include: ...
Lecture 35
... The physical picture here is only slightly more complex than for the atmosphere. The difference is that there are two kinds of particles, electrons and holes, and the force is oppositely directed for the two. The drift current is due to both positive and negative charges. The point about this curren ...
... The physical picture here is only slightly more complex than for the atmosphere. The difference is that there are two kinds of particles, electrons and holes, and the force is oppositely directed for the two. The drift current is due to both positive and negative charges. The point about this curren ...
Final Exam - University of Louisville Physics
... PHYS 222 – Spring 2012 – Final Exam Closed books, notes, etc. No electronic device except a calculator. ...
... PHYS 222 – Spring 2012 – Final Exam Closed books, notes, etc. No electronic device except a calculator. ...
Lecture 1, Aug. 28, 2007
... • Eg can be determined from the minimum energy (hν) of photons that are absorbed by the semiconductor. Bandgap energies of selected semiconductors Material E g (eV) ...
... • Eg can be determined from the minimum energy (hν) of photons that are absorbed by the semiconductor. Bandgap energies of selected semiconductors Material E g (eV) ...
EXAM 1 – 100 points - WebPhysics
... times when the glass is held 3.0 cm from it. Calculate (A) the focal length of the lens. +2.33 cm (B) the height of the image. –3.22 cm 8) A diffraction grating is designed to have the 2nd order maxima at 10° from the central maximum for red light (λ = 700 nm). How many lines per cm does the grating ...
... times when the glass is held 3.0 cm from it. Calculate (A) the focal length of the lens. +2.33 cm (B) the height of the image. –3.22 cm 8) A diffraction grating is designed to have the 2nd order maxima at 10° from the central maximum for red light (λ = 700 nm). How many lines per cm does the grating ...
Electricity and Magnetism Vocabulary
... Battery: a device that is made of several cells and that produces an electric current by converting chemical energy into electrical energy. Cell: a device that produces an electric current by converting chemical energy into electrical energy Circuit: a complete, closed path through which electric ch ...
... Battery: a device that is made of several cells and that produces an electric current by converting chemical energy into electrical energy. Cell: a device that produces an electric current by converting chemical energy into electrical energy Circuit: a complete, closed path through which electric ch ...
Solid State Detectors = Semi-Conductor based Detectors
... Nx excitations produce Np phonons of energy Ex b) Ionization with formation of a mobile charge pair Ni ionizations form NQ charge pairs of energy Ei In other words: ...
... Nx excitations produce Np phonons of energy Ex b) Ionization with formation of a mobile charge pair Ni ionizations form NQ charge pairs of energy Ei In other words: ...
First Semester Honors Chemistry Exam Review (2011
... 54. The electrostatic attraction between positively charged nuclei and negatively charged electrons permits two atoms to be held together by a(n)… 55. What is the bond called if two covalently bonded atoms are identical? 56. If the atoms that share electrons have an unequal attraction for the electr ...
... 54. The electrostatic attraction between positively charged nuclei and negatively charged electrons permits two atoms to be held together by a(n)… 55. What is the bond called if two covalently bonded atoms are identical? 56. If the atoms that share electrons have an unequal attraction for the electr ...
current fuction usage for current lines construction in 2d models
... Report, presented at the 5th Meeting EEGS-ES in Budapest, 5-9 September 1999. The stream function described is employed for the presentation of 2D DC modeling results. The 2D model is understood as a 2D medium with linear current electrodes, oriented along the inhomogeneities' strike direction. In t ...
... Report, presented at the 5th Meeting EEGS-ES in Budapest, 5-9 September 1999. The stream function described is employed for the presentation of 2D DC modeling results. The 2D model is understood as a 2D medium with linear current electrodes, oriented along the inhomogeneities' strike direction. In t ...
Physics 109 Quiz 5 April 4, 2014
... (C) use a magnetic field created by magnetic mono-poles (D) can not make AC power 17. The principal advantage of sending electric power across country on very high voltage transmission lines is that (A) they carry less energy per charge than low voltage transmission lines. (B) electric power lost in ...
... (C) use a magnetic field created by magnetic mono-poles (D) can not make AC power 17. The principal advantage of sending electric power across country on very high voltage transmission lines is that (A) they carry less energy per charge than low voltage transmission lines. (B) electric power lost in ...
Electricity and Magnetism
... carpet. Electrons are transferred from the carpet to the shoes. 2. Rubbing a balloon on your shirt…electrons are transferred from your shirt to the balloon. 3. When you remove clothes from the clothes dryer some have gained electrons and some have lost them. They will stick ...
... carpet. Electrons are transferred from the carpet to the shoes. 2. Rubbing a balloon on your shirt…electrons are transferred from your shirt to the balloon. 3. When you remove clothes from the clothes dryer some have gained electrons and some have lost them. They will stick ...
Electric Motors
... The fan over the stove and in the microwave oven The disposal under the sink The blender The can opener The refrigerator - Two or three in fact: one for the compressor, one for the fan inside the refrigerator, as well as one in the icemaker The mixer The tape player in the answering ma ...
... The fan over the stove and in the microwave oven The disposal under the sink The blender The can opener The refrigerator - Two or three in fact: one for the compressor, one for the fan inside the refrigerator, as well as one in the icemaker The mixer The tape player in the answering ma ...
What do you know about light?
... • On its own the atomic number does not tell us the number of neutrons in an element. In order to determine the number of neutrons we need the mass number. ...
... • On its own the atomic number does not tell us the number of neutrons in an element. In order to determine the number of neutrons we need the mass number. ...
