Multiple Choice Questions - vtu-nptel
... 64. Wave speed in terms of frequency f and wavelength λ is expressed as. a. f/λ b. λ/f c. λ f d. (λ + f) 65. For a lossy dielectric medium, a. σ = 0 b. σ ≠ 0 c. None of these d. Cannot say 66. In the case of a perfect dielectric medium conductivity of wave is a. More than 100% b. Approaches 100% c. ...
... 64. Wave speed in terms of frequency f and wavelength λ is expressed as. a. f/λ b. λ/f c. λ f d. (λ + f) 65. For a lossy dielectric medium, a. σ = 0 b. σ ≠ 0 c. None of these d. Cannot say 66. In the case of a perfect dielectric medium conductivity of wave is a. More than 100% b. Approaches 100% c. ...
Atomic structure - Swampscott Middle School
... Atomic Number: Tells you the number of protons so it also tells you the number of electrons. ( number of protons = number of electrons ) ...
... Atomic Number: Tells you the number of protons so it also tells you the number of electrons. ( number of protons = number of electrons ) ...
Mass Spectroscopy
... Measures mass by detection of the image current of ions cyclotroning in a magnetic field The ions are injected into a Penning Trap(a static electric/magnetic ion trap) where they effectively form part of a circuit. Detectors at fixed positions measure the electrical signal(weak AC ) when the ion ...
... Measures mass by detection of the image current of ions cyclotroning in a magnetic field The ions are injected into a Penning Trap(a static electric/magnetic ion trap) where they effectively form part of a circuit. Detectors at fixed positions measure the electrical signal(weak AC ) when the ion ...
Lecture 8: Mirror / tokamak
... One can either: live with it / drive current another way / use a different concept ...
... One can either: live with it / drive current another way / use a different concept ...
Field-induced magnetic states in holmium tetraboride
... to be μeff = 10.6μB per Ho ion and the Curie-Weiss constant θCW = −13.8 K. These are all in agreement with previously published results [18]. Increasing the field suppresses the ordering temperature and TN2 is no longer present above 20 kOe, while TN1 persists up to at least 25 kOe. Figure 5 compare ...
... to be μeff = 10.6μB per Ho ion and the Curie-Weiss constant θCW = −13.8 K. These are all in agreement with previously published results [18]. Increasing the field suppresses the ordering temperature and TN2 is no longer present above 20 kOe, while TN1 persists up to at least 25 kOe. Figure 5 compare ...
AC Circuits
... configurations (includes the Law of Biot and Savart for magnetic fields). Maxwell's equations - Maxwell's contribution and significance. DC circuits - Ohm's Law, Kirchhoff's Rules, power, series-parallel combinations. Series RLC circuits - phasor diagrams, phase angle, current, power factor Vectors ...
... configurations (includes the Law of Biot and Savart for magnetic fields). Maxwell's equations - Maxwell's contribution and significance. DC circuits - Ohm's Law, Kirchhoff's Rules, power, series-parallel combinations. Series RLC circuits - phasor diagrams, phase angle, current, power factor Vectors ...
Magnetochemistry
Magnetochemistry is concerned with the magnetic properties of chemical compounds. Magnetic properties arise from the spin and orbital angular momentum of the electrons contained in a compound. Compounds are diamagnetic when they contain no unpaired electrons. Molecular compounds that contain one or more unpaired electrons are paramagnetic. The magnitude of the paramagnetism is expressed as an effective magnetic moment, μeff. For first-row transition metals the magnitude of μeff is, to a first approximation, a simple function of the number of unpaired electrons, the spin-only formula. In general, spin-orbit coupling causes μeff to deviate from the spin-only formula. For the heavier transition metals, lanthanides and actinides, spin-orbit coupling cannot be ignored. Exchange interaction can occur in clusters and infinite lattices, resulting in ferromagnetism, antiferromagnetism or ferrimagnetism depending on the relative orientations of the individual spins.