electronics p.munireddy govt.h.s, santhipuram band theory of solids intrinsic and extrinsic...
TRANSCRIPT
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ELECTRONICS
P.MUNIREDDYGOVT.H.S, SANTHIPURAM
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• BAND THEORY OF SOLIDS• INTRINSIC and EXTRINSIC
SEMICONDUCTORS• JUNCTION DIODE –PROPERTIES AND USES• TRANSISTORS –PROPERTIES AND USES• RADIO and T.V -BASIC PRINCIPLES OF
WORKING• COMPUTER- BASIC PRINCIPLES OF
WORKING
Topics in electronics
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Band Theory of solids
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Conduction band
Valence band
Valence band
Conduction band
Valence band
Conduction band
EG
EG
Insulator
ConductorSemiconductor
> 3 eV
1 eV
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Formation of
holeConduction Band
Valence Band
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Formation of hole Movement
Conduction Band
Valence Band
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ELECTRIC CONDUCTION IN INTRINSIC SEMICONDUCTORS
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Charge carriers in semiconductors
• P-type semiconductor
• N-type semi conductor
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JUNCTION DIODE - PROPERTIES and USES
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Types of semi conductors
P-type semi conductor
N- Type semi conductor
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P-type semiconductors
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
GaGe
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n-type semiconductors
Ge
Ge
Ge
Ge
Ge
Ge
Ge
Ge
PGe
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Formation of p- n junction
• P-type and n- type semiconductors
• Recombination of electrons and holes during the formation of junction
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Depletion region
• P-n junction diode with depletion region
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Structure of junction diode
• P- n junction diode
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Reverse bias condition
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TRANSISTORS – PROPERTIES and USES
• Two types of junction transistors
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RADIO and TELEVISION Basic principles of working
• Radio broad casting and reception
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WORKING OF T. V
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Computer - basic principles of working
• Black diagram of computer
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C.P.U
• In side and side c.p.u.
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acknowledgement
• 10th class text book• .www.users.bigpond.com• www.citycolligiate .com• www.tpub.com• www.bestanimation.com• www.fortunecity.com• www.k-12 solid state physics.com• WWW.K-12 physics.com