LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 11. Calculate the electric potential at any point due to a charge configuration of +q and –q separated by a distance ‘2d’. 12. Explain the determination of the conductivity of the given electrolyte using Kohlraush bridge 13. Derive the expression for the magnetic induction at any point on the axis o ...
... 11. Calculate the electric potential at any point due to a charge configuration of +q and –q separated by a distance ‘2d’. 12. Explain the determination of the conductivity of the given electrolyte using Kohlraush bridge 13. Derive the expression for the magnetic induction at any point on the axis o ...
Capacitors_ppt_RevW10
... • Electric Potential Energy is transformed into to some other form (heat, light) by the resistor (light bulb). • Power: ...
... • Electric Potential Energy is transformed into to some other form (heat, light) by the resistor (light bulb). • Power: ...
powerpoint
... force on a currentcarrying wire, relative to the direction of the current and magnetic field lines ...
... force on a currentcarrying wire, relative to the direction of the current and magnetic field lines ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 4. State Kirchoff’s laws of current electricity. 5. State Biot –Savart’s law. 6. Determine the magnetic intensity at a distance of 10 cm due to a long straight conductor carrying a current of 75A. 7. Calculate the time of leakage if the charge on a capacitor of capacitance 4 microfarad in leaking th ...
... 4. State Kirchoff’s laws of current electricity. 5. State Biot –Savart’s law. 6. Determine the magnetic intensity at a distance of 10 cm due to a long straight conductor carrying a current of 75A. 7. Calculate the time of leakage if the charge on a capacitor of capacitance 4 microfarad in leaking th ...
Magnets and Electromagnets
... • Whether a material is magnetic or not depends on the material’s atoms. • In material such as iron, nickel, and colbalt, groups of atoms are in tiny areas called domains. • The arrangement of domains in an object determines whether the object is magnetic. • When domains move the magnet is demagneti ...
... • Whether a material is magnetic or not depends on the material’s atoms. • In material such as iron, nickel, and colbalt, groups of atoms are in tiny areas called domains. • The arrangement of domains in an object determines whether the object is magnetic. • When domains move the magnet is demagneti ...
Lecture 17: Magnetic induction: Faraday`s law
... setback, or failure; the quality or virtue of being persistent. ...
... setback, or failure; the quality or virtue of being persistent. ...
Supplementary Notes
... Supplementary Notes for Physics 2 Discussion Tomoyuki Nakayama a.k.a Tom I just started to make the notes so don’t expect too much ...
... Supplementary Notes for Physics 2 Discussion Tomoyuki Nakayama a.k.a Tom I just started to make the notes so don’t expect too much ...
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.