What is FET ? [ Field Effect Transistor]

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A FET [ Field Effect Transistor] is a voltage controlled device ,the output characteristics are controlled by input voltage (i.e. electric field) and not by input current. FETs are also known as unipolar transistors .There are two basic types of field…

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The application of FET [ Field Effect Transistor]

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What is p-n junction?

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p-n junction : When a p type semiconductor is suitably joined with a n type semiconductor the conduct surface is called p-n junction.

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Teletalk 2GB 33Tk Internet Offer | Teletalk offer 2018

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Teletalk internet offer 2018 : (33 takay 2GB teletalk) Teletalk 2GB 33Tk Internet Offer Validity 2 Days Dial 11*33# or Recharge 33 Tk Data Check Dial *152# or Type Usend to 11

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Banglalink All Internet Packages 2018 ,Prices and Activation codes

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Banglalink all Internet Packages ,Prices and Activation codes in 2018 :  Source : Banglalink website Daily Packages Pack Cost Activation 50 MB 13 tk *5000*543# Weekly Packages monthly pack comes with a 7 days validity Pack Cost Activation…

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airtel Bondho SIM offer! 3GB Internet at 19Tk Recharge

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Airtel Bondho SIM offer 2018 : Upto 3GB Internet at 19Tk Recharge on Airtel bondho sim! You can buy this bundle pack as many as you want by recharging 19 Tk! – Check Eligibility Dial *999# Or *222*2#…

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Robi Bondho SIM offer 2018! 10GB 101Tk Internet Offer

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Robi Bondho SIM offer 2018! Reactivate your Robi connection and Enjoy exciting offer! Return Robi’s 4.5 G Network and enjoy 10 GB @ 101 Tk for 30 days >>5GB for any use >> 5GB for 4G use only…

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Explained Kinds of Crystals | Types of Crystals

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There are seven crystal systems and six crystal families. They are : 1. Triclinic 2.Monoclinic 3.Orthorhombic 4.Rhombohedral 5.Tetragonal 6.Hexagonal 7.Cubic Explanations given below – Triclinic crystal system : In crystallography, the triclinic crystal system is one of the…

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What is Amorphous Solid? Properties of the Amorphous Solid

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Amorphous solids: An amorphous or non-crystalline solid is a solid that lacks the long-range order characteristic of a crystal. Most classes of solid materials can be found or prepared in an amorphous form. Amorphous materials are often prepared…

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What is Crystalline Solid? Properties of the Crystalline Solid

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Crystalline solids: A crystal or crystalline solid is a solid material whose constituents, such as atoms, molecules or ions, are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition,…

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Airtel 7 GB Internet only @ 179Tk | Airtel Internet offer 2018

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Airtel Sim Offer 2018 : Airtel 7 GB internet offer. Airtel subscribers can enjoy up to 7 GB internet only at 179 tk. To enjoy this attractive offer, dial * 123 * 179 #, or recharge 179 Tk….

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P-type Semiconductors conductivity | Ge doped P-type

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P-type conductivity : The current conduction in an p-type semiconductor is predominantly by holes and is called p type conductivity.When potential difference is applied across the p-type semiconductors the holes will be directed towards the negative terminal, constituting…

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How can we create a p-type Semiconductor ? | Ge doped P-type

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When a small amount of trivalent metallic impurity is added to a pure semiconductor it is called p-type semiconductor. The addition of trivalent impurity provides a  large number of holes in the semi conductor crystal. Typical examples of trivalent…

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What is the effect of temperature on semiconductor

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Temperature effects the mobility , conductivity,intrinsic concentration and forbidden energy gap of a semiconductor. Effect of temperature on semiconductor is given below : Mobility (µ) : The mobility means the movement of charge carriers. The mobility of intrinsic semiconductor decreases…

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What do you mean by Valence Electrons and Free Electrons ?

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Valence electrons are the electrons in the outermost shell of an atom( in valance band ). These electrons are weakly bound to the nucleus. These electrons are bounded to atom so that it can only be moved within valance…

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