• LC circuit Oscillatiing current

    Updated: 2011-03-31 02:30:42
    *1. The problem statement, all variables and given/known data* An LC circuit is shown in the figure below. the 33 pF capacitor is initially charged by the 6V battery when S is at position a. Then...

  • Magnetic fields and current loop conceptual problem

    Updated: 2011-03-31 02:25:42
    1. The problem statement, all variables and given/known data A) A current loop is placed in a uniform magnetic field that is directed out of the page as shown. The current is clockwise as shown. ...

  • Inertial Frames in Relativity

    Updated: 2011-03-31 01:30:13
    If I am standing at the bottom a spaceship of a Length L moving at a certain speed v (let's say half light speed so that relativistic effects aren't negligible), how would I go about calculating how...

  • Kerala Engineering Entrance [KEAM (Engineering)] 2007 Question on Percentage Error

    Updated: 2011-03-28 17:13:00
    : Please : note physicsplus.blogspot.com is now www.physicsplus.in Pages Home About IIT-JEE physicsplus The Physics Site for Success In science one tries to tell people , in such a way as to be understood by everyone , something that no one ever knew before . But in poetry , it's the exact opposite Paul A . M . Dirac Monday , March 28, 2011 Kerala Engineering Entrance KEAM Engineering 2007 Question on Percentage Error In continuation of the previous post dated 23 rd March 2011 related to errors in measurements , I give you today the following question which appeared in KEAM Engineering 2007 question : paper The value of two resistors are R 1 6 0.3 kΩ and R 2 10 0.2 kΩ . The percentage error in the equivalent resistance when they are connected in parallel is a 5.125 b 2 c 3.125 d 7 e 10.125

  • An icy gaze into the Big Bang

    Updated: 2011-03-22 06:31:58
    Researchers of the Institute for Quantum Optics and Quantum Information (IQOQI) in Innsbruck, Austria, have reached a milestone in the exploration of quantum gas mixtures. In an international first, the research group led by Rudolf Grimm and Florian Schreck has succeeded in producing controlled strong interactions between two fermionic elements - lithium-6 and potassium-40. This model system not only promises to provide new insights into solid-state physics but also shows intriguing analogies to the primordial substance right after the Big Bang........

  • Enhancing the Magnetism

    Updated: 2011-03-22 06:31:57
    "The nation that controls magnetism will control the universe," famed fictional detective Dick Tracy predicted back in 1935. Probably an overstatement, but there's little doubt the nation that leads the development of advanced magnetoelectronic or "spintronic" devices is going to have a serious leg-up on its Information Age competition. A smaller, faster and cheaper way to store and transfer information is the spintronic grand prize and a key to winning this prize is understanding and controlling a multiferroic property known as "spontaneous magnetization"........

  • Black Holes: A Model for Superconductors?

    Updated: 2011-03-22 06:31:53
    Black holes are some of the heaviest objects in the universe. Electrons are some of the lightest. Now physicists Robert G. Leigh and Philip Phillips along with postdoctoral fellow Mohammad Edalati and graduate student Ka Wai Lo of the University of Illinois have shown how charged black holes can be used to model the behavior of interacting electrons in unconventional superconductors........

  • Multiple Choice Practice Questions on Electrostatics

    Updated: 2011-03-06 00:47:00
    : Please : note physicsplus.blogspot.com is now www.physicsplus.in Pages Home About physicsplus The Physics Site for Success In science one tries to tell people , in such a way as to be understood by everyone , something that no one ever knew before . But in poetry , it's the exact opposite Paul A . M . Dirac Sunday , March 06, 2011 Multiple Choice Practice Questions on Electrostatics If you grasp the fundamental principles well , you will be able to answer multiple choice questions within the stipulated time . If you are confused about the fundamental principles , you will be tempted to waste your time while dealing with even simple questions just because of some simple distractions . See the following : questions 1 A battery of emf 12 V is connected in series with two initially uncharged

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