mudassirbackup

Author: misamaliraza94

  • N Type Semiconductor

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    misamaliraza94
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    Before understanding what is n-type semiconductor we should focus on some basic theories of atomic science. We all know that each atom of any substance requires eight electrons at its outermost orbit. But it is also true that all atoms do not have eight electrons at their outermost orbit. But all the atoms have an…

  • Intrinsic Semiconductor

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    misamaliraza94
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    Semiconductor is a material whose conductivity lies in-between that of the conductors and the insulators. Semiconductors which are chemically pure, meaning free of impurities, are called Intrinsic Semiconductors or Undoped Semiconductor or i-type Semiconductor. The most common intrinsic semiconductors are Silicon (Si) and Germanium (Ge), which belong to Group IV of the periodic table. The…

  • Semiconductor

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    misamaliraza94
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    The Physics of a Semiconductor There are some materials, which have neither good conductivity nor bad conductivity of electricity. They have a moderate range of electrical conductivity. The examples of such materials are germanium, silicon, carbon etc. As the conductivity of those materials lies between good conductors and insulators, and these materials are called semiconductors.…

  • Fault

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    misamaliraza94
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    Fault – (Ground fault) This happens when an ungrounded conductor (line wire) comes in contact with anything that is grounded (i.e. motor winding touching case, or line wire of appliance touching the metal frame.)

  • Direct current (DC) 

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    Direct current (DC) – Current that only goes in one direction. Battery supplied power is DC.

  • Device

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    Device* – A unit of an electrical system that carries or controls (but does not use) electric energy as its principal function. (Example:  receptacle or switch)

  • Dedicated circuit 

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    misamaliraza94
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    A circuit that has only one receptacle and is used for one load that has a high current rating.

  • Current flow direction

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    misamaliraza94
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    Current flow direction – It is not known for sure what direction currents flows. The conventional theory of current flow is from positive (+) to negative (-).

  • Current 

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    misamaliraza94
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    Current – The flow of electrons through a conductor, the quantity is measured in amps (A) .

  • Continuity 

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    misamaliraza94
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    Continuity – A circuit has continuity when there is a continuous path for electricity to flow through the circuit (free from open circuit conditions). A multimeter, continuity tester, and certain solenoid testers can measure continuity.