Class XII (Theory)
... Electric current, flow of electric charges in a metallic conductor, drift velocity, mobility and their relation with electric current; Ohm’s law, electrical resistance, V-I characteristics (linear and non-linear), electrical energy and power, electrical resistivity and conductivity. Carbon resistors ...
... Electric current, flow of electric charges in a metallic conductor, drift velocity, mobility and their relation with electric current; Ohm’s law, electrical resistance, V-I characteristics (linear and non-linear), electrical energy and power, electrical resistivity and conductivity. Carbon resistors ...
615-0185 (20-010) Instructions for Dip Needle
... Unfortunately, the earth’s magnetic field is not constant. There are localized regions with entirely different magnetic properties, sometime having an opposite orientation than the surrounding field! Iron deposits, the fact that the earth’s surface is not regular, basaltic rocks on the seafloor, and ...
... Unfortunately, the earth’s magnetic field is not constant. There are localized regions with entirely different magnetic properties, sometime having an opposite orientation than the surrounding field! Iron deposits, the fact that the earth’s surface is not regular, basaltic rocks on the seafloor, and ...
Electricity and its Effects
... therefore the person using rubber made gloves, sandals, shoes does not become a part of the electrical circuit and no current passes through his body. The current flowing in the circuit does not affect the person who touches the wire etc., and he can work with electric appliances safely. ...
... therefore the person using rubber made gloves, sandals, shoes does not become a part of the electrical circuit and no current passes through his body. The current flowing in the circuit does not affect the person who touches the wire etc., and he can work with electric appliances safely. ...
LAB: Magnetism
... 1. Tape the measuring tape or meter stick to the table, and tape the Magnetic Field Sensor to a convenient location. The sensor should be perpendicular to the stick, with the white spot inside the rod facing along the meter stick in the direction of increasing distance. Carefully measure the locatio ...
... 1. Tape the measuring tape or meter stick to the table, and tape the Magnetic Field Sensor to a convenient location. The sensor should be perpendicular to the stick, with the white spot inside the rod facing along the meter stick in the direction of increasing distance. Carefully measure the locatio ...
Exam review slides WITH SOLUTIONS
... jumping from one plate to the other. • C) There is no magnetic field between the capacitor plates because no charge travels between the plates. • D) There is a magnetic field between the capacitor plates, even though no charge travels between them, because the magnetic flux between the plates is cha ...
... jumping from one plate to the other. • C) There is no magnetic field between the capacitor plates because no charge travels between the plates. • D) There is a magnetic field between the capacitor plates, even though no charge travels between them, because the magnetic flux between the plates is cha ...
Nuclear Magnetic Resonance
... Nuclear Overhauser Effect (NOE) – A change in signal intensity for one type of nucleus is caused by irradiation of another type of nucleus that is nearby. – Duo to the local magnetic fluctuation. – The NOE is a dipole-dipole interaction that depends on the distance between two ...
... Nuclear Overhauser Effect (NOE) – A change in signal intensity for one type of nucleus is caused by irradiation of another type of nucleus that is nearby. – Duo to the local magnetic fluctuation. – The NOE is a dipole-dipole interaction that depends on the distance between two ...
DC Motors
... DC motors convert electrical into mechanical energy. They consist of permanent magnets and loops of wire inside. When current is applied, the wire loops generate a magnetic field, which reacts against the outside field of the static magnets. The interaction of the fields produces the movement of the ...
... DC motors convert electrical into mechanical energy. They consist of permanent magnets and loops of wire inside. When current is applied, the wire loops generate a magnetic field, which reacts against the outside field of the static magnets. The interaction of the fields produces the movement of the ...
Lecture 20
... Exercise: Label points A and B with plus or minus signs, according to the polarity of the self-induced emf. ...
... Exercise: Label points A and B with plus or minus signs, according to the polarity of the self-induced emf. ...
W10D1
... • Produced by two kinds of electron motion – electron spin • main contributor to magnetism • pair of electrons spinning in same direction creates a stronger magnet • pair of electrons spinning in opposite direction cancels magnetic field of the other ...
... • Produced by two kinds of electron motion – electron spin • main contributor to magnetism • pair of electrons spinning in same direction creates a stronger magnet • pair of electrons spinning in opposite direction cancels magnetic field of the other ...
EARTH`S MAGNETIC FIELD
... If not, consider the direction of the compass as the ‘effective’ North direction for your set up. 7) Orient the base such that the protractor on it is aligned with the compass needle along 0º. Rotate the coil such that BCOIL is perpendicular to BEARTH. From Eq. (1) the magnitude of BCOIL depends on ...
... If not, consider the direction of the compass as the ‘effective’ North direction for your set up. 7) Orient the base such that the protractor on it is aligned with the compass needle along 0º. Rotate the coil such that BCOIL is perpendicular to BEARTH. From Eq. (1) the magnitude of BCOIL depends on ...
why alternating current??
... • Power is delivered over power lines with AC, because less energy is lost ...
... • Power is delivered over power lines with AC, because less energy is lost ...
il "ferrofluido" ha quelle caratteristiche di comportamento
... ferrofluid, but it needs to be pulverized before. To do this rub it with your hands very carefully, picking up the gray powder that comes off the steel wool. This powder is still too heterogeneous for the experiment, it's necessary to filter it. So, collect the filings in a glass or in a beaker, cov ...
... ferrofluid, but it needs to be pulverized before. To do this rub it with your hands very carefully, picking up the gray powder that comes off the steel wool. This powder is still too heterogeneous for the experiment, it's necessary to filter it. So, collect the filings in a glass or in a beaker, cov ...
Giant magnetoresistance
Giant magnetoresistance (GMR) is a quantum mechanical magnetoresistance effect observed in thin-film structures composed of alternating ferromagnetic and non-magnetic conductive layers. The 2007 Nobel Prize in Physics was awarded to Albert Fert and Peter Grünberg for the discovery of GMR.The effect is observed as a significant change in the electrical resistance depending on whether the magnetization of adjacent ferromagnetic layers are in a parallel or an antiparallel alignment. The overall resistance is relatively low for parallel alignment and relatively high for antiparallel alignment. The magnetization direction can be controlled, for example, by applying an external magnetic field. The effect is based on the dependence of electron scattering on the spin orientation.The main application of GMR is magnetic field sensors, which are used to read data in hard disk drives, biosensors, microelectromechanical systems (MEMS) and other devices. GMR multilayer structures are also used in magnetoresistive random-access memory (MRAM) as cells that store one bit of information.In literature, the term giant magnetoresistance is sometimes confused with colossal magnetoresistance of ferromagnetic and antiferromagnetic semiconductors, which is not related to the multilayer structure.