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February 2009
... electrons moving under the influence of the Lorentz force experience resistance to their flow. This ‘Hall resistance’ increases linearly with the strength of the magnetic field (Fig. 2a). The quantum version of the Hall effect was discovered in 1980 when researchers measured the properties of electr ...
... electrons moving under the influence of the Lorentz force experience resistance to their flow. This ‘Hall resistance’ increases linearly with the strength of the magnetic field (Fig. 2a). The quantum version of the Hall effect was discovered in 1980 when researchers measured the properties of electr ...
Mass spectrometry - ERTE
... passing through a radio frequency (RF) quadrupole field created between 4 parallel rods. Only the ions in a certain range of mass/charge ratio are passed through the system at any time, but changes to the potentials on the rods allow a wide range of m/z values to be swept rapidly, either continuousl ...
... passing through a radio frequency (RF) quadrupole field created between 4 parallel rods. Only the ions in a certain range of mass/charge ratio are passed through the system at any time, but changes to the potentials on the rods allow a wide range of m/z values to be swept rapidly, either continuousl ...
Adaptation of Ultra-Precise Atomic Mass Measurement
... mass of the particle. It is possible, then, by measuring the ratio of cyclotron frequencies of two particles to get the ratio of their two masses. This basic idea is the foundation for the ultraprecise atomic mass measurements acquired in our lab. There are, however, a multitude of complications to ...
... mass of the particle. It is possible, then, by measuring the ratio of cyclotron frequencies of two particles to get the ratio of their two masses. This basic idea is the foundation for the ultraprecise atomic mass measurements acquired in our lab. There are, however, a multitude of complications to ...
Effective Mass
... a) Energy level diagrams showing the excitation of an electron from the valence band to the conduction band. The resultant free electron can freely move under the application of electric field. b) Equal electron & hole concentrations in an intrinsic semiconductor created by the thermal excitation of ...
... a) Energy level diagrams showing the excitation of an electron from the valence band to the conduction band. The resultant free electron can freely move under the application of electric field. b) Equal electron & hole concentrations in an intrinsic semiconductor created by the thermal excitation of ...
Lecture #12, October 21
... change rate and as a result the decrease of the electric field, so the smaller charge is needed to provide this smaller field. More complicated shapes of the capacitors, such as cylindrical capacitor or spherical capacitor, are often used in practice. In the case of those capacitors C depends on A a ...
... change rate and as a result the decrease of the electric field, so the smaller charge is needed to provide this smaller field. More complicated shapes of the capacitors, such as cylindrical capacitor or spherical capacitor, are often used in practice. In the case of those capacitors C depends on A a ...
phys1444-lec3
... • Concept of energy is very useful in solving mechanical problems • Conservation of energy makes solving complex problems easier. • When can the potential energy be defined? – Only for a conservative force. – The work done by a conservative force is independent of the path. What does it only depend ...
... • Concept of energy is very useful in solving mechanical problems • Conservation of energy makes solving complex problems easier. • When can the potential energy be defined? – Only for a conservative force. – The work done by a conservative force is independent of the path. What does it only depend ...
9792/03 UNIVERSITY OF CAMBRIDGE INTERNATIONAL
... Answer any three questions in this section. You are advised to spend about 1 hour 30 minutes on this section. ...
... Answer any three questions in this section. You are advised to spend about 1 hour 30 minutes on this section. ...