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  2. Common mode current - Wikipedia

    en.wikipedia.org/wiki/Common_Mode_Current

    Common mode current cause multiconductors to act or behave like a single conductor. In electromagnetic compatibility (EMC), there are two common terms that will be found in many electromagnetic interference discussions or considered as fundamental concepts, those are Differential Mode and Common Mode. Those terms are related to coupling mechanisms.

  3. List of unsolved problems in physics - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    The following is a list of notable unsolved problems grouped into broad areas of physics. [1]Some of the major unsolved problems in physics are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result.

  4. National Council of Educational Research and Training

    en.wikipedia.org/wiki/National_Council_of...

    The policy endorsed the adoption of a uniform pattern of school education across the country consisting of 10 years of general education program followed by 2 years of diversified schooling. The NCERT is also behind the formation of the National Science Talent Search Scheme (NTSS) in the year 1963.

  5. Electricity - Wikipedia

    en.wikipedia.org/wiki/Electricity

    Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations.

  6. National Standard Examination in Junior Science - Wikipedia

    en.wikipedia.org/wiki/National_Standard...

    The National Standard Examination in Junior Science or NSEJS is an examination in Science for secondary school students, usually conducted in the end of November. Organized by the Indian Association of Physics Teachers in association with Homi Bhabha Centre for Science Education (HBCSE), NSEJS is considered to be the toughest Science exam on ...

  7. Uncertainty principle - Wikipedia

    en.wikipedia.org/wiki/Uncertainty_principle

    where = is the reduced Planck constant.. The quintessentially quantum mechanical uncertainty principle comes in many forms other than position–momentum. The energy–time relationship is widely used to relate quantum state lifetime to measured energy widths but its formal derivation is fraught with confusing issues about the nature of time.

  8. List of unsolved problems in computer science - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    NC = P problem The P vs NP problem is a major unsolved question in computer science that asks whether every problem whose solution can be quickly verified by a computer (NP) can also be quickly solved by a computer (P). This question has profound implications for fields such as cryptography, algorithm design, and computational theory. [1]

  9. Electric current - Wikipedia

    en.wikipedia.org/wiki/Electric_current

    An electric current is a flow of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is defined as the net rate of flow of electric charge through a surface.