Dipole

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Dipole Meaning and Definition in Dictionary

Dipole Meaning and Definition from WordNet (r) 2.0
    dipole n
  1. a pair of equal and opposite electric charges or magnetic poles separated by a small distance
  2. an aerial half a wavelength long consisting of two rods connected to a transmission line at the center [syn: dipole antenna}]

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Dipole Meaning and Definition in Wikipedia


Dipole can mean two things in physics. The first is an electric dipole which separates the positive charge from the negative charge. A simple example of this dipole is a pair of electric charges with the same magnitude but with the opposite type of charge (positive and negative) and are separated by a small distance from each other. The second is a magnetic dipole, a closed circulation of electric current. A simple example is a single loop of wire with electric current flowing through it.

An important characeristic of dipoles is their dipole moment, which is a vector quantity with both a magnitude and direction. An example of an electric dipole moment occurring is in a pair of electric charges with opposite signs. The dipole moment would point from the negative charge towards the positive charge. The magnitude of the moment is equal to the strength of each charge multiplied by the distance separating between the charges. An example of a magnetic dipole moment occurring is in a wire loop with flowing current. The magnetic dipole moment would point through the loop (according to the right hand rule), with a magnitude equal to the current in the loop times the area of the loop.

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Dipole Sample Sentences in News


  • Dipole Coil Resonant System Transfers Wireless Power At 5-meter Distance
    [ Watch The Video: Wireless Power Transfer Reaches Five Meters ] The Korea Advanced Institute of Science and Technology (KAIST) With a maximum output power of 209 W at 20 kHz, the Dipole Coil Resonant System can charge 40 smart phones simultaneously, even if the power source is 5 meters away The way electronic devices receive their power has changed tremendously o Read more on this news related to 'Dipole'
  • Soon, wireless power zones to charge your phone
    London, April 18 (IANS) What if you are told you can charge your smart phone even if the power source is some distance away on a street or inside a restaurant? Taking the wireless technology one step ahead, researchers have removed the last remaining wires altogether by developing wireless power transfer technology. The result is Dipole Coil Resonant System (DCRS) Read more on this news related to 'Dipole'
  • Wireless power transfer achieved at 5-meter distance
    ( The Korea Advanced Institute of Science and Technology (KAIST) ) Chun T. Rim, a professor of Nuclear & Quantum Engineering at KAIST, and his team showcased, on April 16, 2014 at the KAIST campus, Daejeon, Republic of Korea, a great improvement in the distance that electric power can travel wirelessly. They developed the 'Dipole Coil Resonant System' for Read more on this news related to 'Dipole'

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