exam4_with_Answers
... 76. In a Young's double slit experiment, if the separation between the two slits is 50 µm and the distance from the slits to a screen is 2.5 m, find the spacing between the firstorder and second-order bright fringes for light with wavelength of 600 nm. A) B) C) D) E) ...
... 76. In a Young's double slit experiment, if the separation between the two slits is 50 µm and the distance from the slits to a screen is 2.5 m, find the spacing between the firstorder and second-order bright fringes for light with wavelength of 600 nm. A) B) C) D) E) ...
Laws of Thermodynamics
... exists. 2. Iron filings around a magnet can represent magnetic field lines. 3. The greater the number of field lines, the stronger the magnetic field 4. The direction of the magnetic field lines is defined as the direction to which North pole of a compass points when it is placed in the magnetic fie ...
... exists. 2. Iron filings around a magnet can represent magnetic field lines. 3. The greater the number of field lines, the stronger the magnetic field 4. The direction of the magnetic field lines is defined as the direction to which North pole of a compass points when it is placed in the magnetic fie ...
PROBLEM SET AP2 Magnetic Fields and
... a. What is the force per meter on the wire when carrying 9.8 A of current and is inserted perpendicularly to a 0.80 T magnetic field? b. What is the force if the angle between the wire and the magnetic field is 45°? 20. (I) A wire 1.5 m in length is carrying 6.5 A of current is oriented horizontally ...
... a. What is the force per meter on the wire when carrying 9.8 A of current and is inserted perpendicularly to a 0.80 T magnetic field? b. What is the force if the angle between the wire and the magnetic field is 45°? 20. (I) A wire 1.5 m in length is carrying 6.5 A of current is oriented horizontally ...
Document
... CT-3- Consider two parallel wires carrying currents I1 and I2 respectively. The wires are a small distance a apart. Which of the following (is) are true: A. If I1 = 2I2 and the directions of the currents are in the same direction, then the attractive force on the wire carrying I2 is 2 times that on ...
... CT-3- Consider two parallel wires carrying currents I1 and I2 respectively. The wires are a small distance a apart. Which of the following (is) are true: A. If I1 = 2I2 and the directions of the currents are in the same direction, then the attractive force on the wire carrying I2 is 2 times that on ...
critical fields of thin superconducting films
... Critical fields for a phase transition of the second kind are determined for thin films over the whole temperature range. Both pure films as well as those containing various concentrations of impurities are considered. The reflection of electrons from the surface of the film is assumed to be diffuse ...
... Critical fields for a phase transition of the second kind are determined for thin films over the whole temperature range. Both pure films as well as those containing various concentrations of impurities are considered. The reflection of electrons from the surface of the film is assumed to be diffuse ...
Document
... microwave oven (2.45 or 2.5 GHz): Microwaves are absorbed by water, fats and sugars. When they are absorbed they are converted (through frictional mechanism) into atomic motion - heat. They are not absorbed by most plastics, glass or ceramics. Metal reflects microwaves, this is why metal pans do not ...
... microwave oven (2.45 or 2.5 GHz): Microwaves are absorbed by water, fats and sugars. When they are absorbed they are converted (through frictional mechanism) into atomic motion - heat. They are not absorbed by most plastics, glass or ceramics. Metal reflects microwaves, this is why metal pans do not ...
June 2000 - Vicphysics
... Force on LHS of coil is out of page, while the force on RHS is into the page. These forces produce an initial rotation. 900 later the forces are still in the same direction, pulling the coil apart, but not making it turn. It is possible that if there is little friction in the system, then there may ...
... Force on LHS of coil is out of page, while the force on RHS is into the page. These forces produce an initial rotation. 900 later the forces are still in the same direction, pulling the coil apart, but not making it turn. It is possible that if there is little friction in the system, then there may ...
Synthesis of a new alkali metal-organic solvent
... is shown in Figure 6. The resistivity in the normal state shows above 100 K a weakly ...
... is shown in Figure 6. The resistivity in the normal state shows above 100 K a weakly ...
Van Vleck Magnetism and High Magnetic Fields:
... rather strong hyperfine interaction makes these substances extremely interesting from the standpoint of studying electronic–nuclear magnetism. The magnetic field induced at the nucleus of the Van Vleck RE ion is many times greater values (up to several hundred) of the paramagnetic shifts of the NMR ...
... rather strong hyperfine interaction makes these substances extremely interesting from the standpoint of studying electronic–nuclear magnetism. The magnetic field induced at the nucleus of the Van Vleck RE ion is many times greater values (up to several hundred) of the paramagnetic shifts of the NMR ...
Magnetic Effects due to Electric Currents Result:
... changing magnetic flux) is such that it produces a magnetic field that opposes the change in original flux. E.g. If field increases with time the field produced by induced current will be opposite in direction to original external field (and vice versa). • As magnet is pushed through coil loop, the ...
... changing magnetic flux) is such that it produces a magnetic field that opposes the change in original flux. E.g. If field increases with time the field produced by induced current will be opposite in direction to original external field (and vice versa). • As magnet is pushed through coil loop, the ...
Superconductivity
Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields occurring in certain materials when cooled below a characteristic critical temperature. It was discovered by Dutch physicist Heike Kamerlingh Onnes on April 8, 1911 in Leiden. Like ferromagnetism and atomic spectral lines, superconductivity is a quantum mechanical phenomenon. It is characterized by the Meissner effect, the complete ejection of magnetic field lines from the interior of the superconductor as it transitions into the superconducting state. The occurrence of the Meissner effect indicates that superconductivity cannot be understood simply as the idealization of perfect conductivity in classical physics.The electrical resistivity of a metallic conductor decreases gradually as temperature is lowered. In ordinary conductors, such as copper or silver, this decrease is limited by impurities and other defects. Even near absolute zero, a real sample of a normal conductor shows some resistance. In a superconductor, the resistance drops abruptly to zero when the material is cooled below its critical temperature. An electric current flowing through a loop of superconducting wire can persist indefinitely with no power source.In 1986, it was discovered that some cuprate-perovskite ceramic materials have a critical temperature above 90 K (−183 °C). Such a high transition temperature is theoretically impossible for a conventional superconductor, leading the materials to be termed high-temperature superconductors. Liquid nitrogen boils at 77 K, and superconduction at higher temperatures than this facilitates many experiments and applications that are less practical at lower temperatures.