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Dodoma/Dar. Waziri wa Fedha, Saada Mkuya leo atawasilisha bajeti ya Serikali kwa mwaka wa fedha wa 2015/16 ambayo wachambuzi wameielezea kuwa itakuwa na unafuu kwa wananchi kutokana na Uchaguzi Mkuu...
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Serikali za Afrika mashariki zimetumia kodi kuvitahadharisha viwanda vyake kwa upande mmoja na kuwapa motisha wananuzi wa bidhaa kutoka nje wanaosaidia sekta muhimu kama vile miundo mbinu,kawi mbali...
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Serikali ya Nigeria na nchi nyengine nne majirani zimekubaliana kuunda vikosi vya jeshi la pamoja ili kupambana na wapiganaji wa kiislamu wa Boko Haram. Kikosi hicho kitapiga kambi katika mji mkuu wa...
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Shirika la afya duniani WHO limeelezea wasiwasi wake kwamba visa vipya vya maambukizi ya maradhi hatari ya Ebola vimeongezeka huko Guinea na Sierra Leone katika kipindi cha wiki tatu zilizopita. WHO...
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Shirika la Umoja wa Mataifa linalosimamia chakula WFP limesema kuwa litapunguza kiwango cha chakula kwa takriban wakimbizi nusu milioni kazkazini mwa Kenya kutokana na ukosefu wa ufadhili. WFP...
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Daktari wa usapuaji nchini Afrika Kusini amethibitisha kwamba mwanamme wa kwanza aliyepandikizwa uume atakuwa baba hivi karibuni. Professor Andre van der Merwe, ambaye ndiye aliyefanya upasuaji huo...
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Watafiti wa gari aina ya Landrover Jaguar wametengeza gari ambalo linaweza kuhisi mashimo yalio barabarani wakati linapoendeshwa.Sensa zilizopo katika gari hilo hubaini mashimo hayo na hutuma ujumbe...
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Mio za kuwania kumrithi Rais Jakaya Kikwete miongoni mwa makada wa Chama Cha Mapinduzi (CCM) zimezidi kushika kasi, safari hii Waziri wa Mambo ya Nje na Ushirikiano wa Kimataifa, Bernard Membe,...
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Mwenyekiti wa Chama cha Wananchi (CUF), Profesa Ibrahim Lipumba, Jumapili atachukua fomu ya kugombea urais ndani ya chama hicho na atawaeleza Watanzania sababu ya kuwania nafasi hiyo. Akizungumza...
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Naibu Waziri wa Mawasiliano, Sayansi na Teknolojia, January Makamba, ameungwa mkono na Umoja wa Vijana wa Chama Cha Mapinduzi (UVCCM) mkoani Iringa ambako alipata wadhamini zaidi ya 600. Akizungumza...
View ArticleLaser,Types and Components of Laser
LASER The acronym LASER stands for Light amplification by stimulated emission of radiation. It is a device which produce lights. These lights have no existence in nature. The lights can be produced...
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Biasing Amplifier In 1947 J. Barden, W. Bratterin and W. Shockley invented transistor. The term transistor was given by John R. Pierce. Through initially it was called the solid state version of the...
View ArticleMOSFET Circuits
MOSFET which has become the most commonly used three terminal devices brings revolution in the world of electronic circuits. Without MOSFET, the design of integrated circuits seems impossible...
View ArticleEnergy Bands of Silicon
Silicon is a kind of semiconductor material whose number of free electrons is less than conductor but more than that of insulator. For having this unique characteristics, silicon has a vast...
View ArticleIntrinsic Silicon and Extrinsic Silicon
Intrinsic Silicon A pure semi conductors material which has impurity is do pent atom and no lattice defects is known as intrinsic silicon . The electrical conductivity of this type of silicon is...
View ArticleMOSFET,Working Principle of p-channel n-channel MOSFET
MOSFET stands for metal oxide semiconductor field effect transistor. It is capable of voltage gain and signal power gain. The MOSFET is the core of integrated circuit designed as thousands of these...
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P-N junction diode is the most fundamental and the simplest electronics device. When one side of an intrinsic semiconductor is doped with acceptor i.e, one side is made p-type by doping with n-type...
View ArticleJFET or Junction Field Effect Transistor
The junction field effect transistor or JFET is one of the simplest transistors from the structural point of view. It is a voltage controlled semiconductor device. In this, the current is carried by...
View ArticleLED or Light Emitting Diode
In modern era we are highly familiar with the term LED . It stands for light emitting diode . These are mainly used for making indicators and various other types of lightning. In 1962 first this type...
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