Q: A/L Engineering Technology Lesson 12 — ඉලෙක්ට්රොනික තාක්ෂණවේදය හි ඇතුළත් ප්රධාන මාතෘකා මොනවාද?

A/L Engineering Technology Lesson 12 'ඉලෙක්ට්රොනික තාක්ෂණවේදය' (Electronics Technology) හි ප්රධාන මාතෘකා: Semiconductors (P-type, N-type, PN junction), Diodes (Rectifier, Zener, LED, Photodiode), Rectifier Circuits (Half-wave, Full-wave, Bridge), Transistors (BJT NPN/PNP, FET, MOSFET — amplifier configurations), Operational Amplifiers (Inverting, Non-inverting, Comparator), Digital Logic Gates (AND, OR, NOT, NAND, NOR, XOR), Boolean Algebra & De Morgan's Theorems, Combinational Circuits (Adder, Multiplexer, Decoder), Sequential Circuits (Flip-flops SR/D/JK, Counters, Registers), සහ Microcontrollers Introduction. මෙම පාඩම Unit 3 යටතේ ET-L12 ලෙස ගැනේ.

Q: A/L Engineering Technology Lesson 12 Electronics Technology notes PDF නොමිලේ download කරන්නේ කොහෙන්ද?

AL Tech Hub (altechhub.lk) හි Lesson 12 Downloads කොටසෙන් සියලු ලිපිගොනු නොමිලේ ලබාගත හැකිය: Full Notes PDF (8.0 MB, 108 pages), Semiconductor & Diode Guide, Transistor & Op-Amp Notes, Digital Logic & Boolean Algebra PDF, Sequential Circuits & Flip-Flops, Microcontroller Introduction PDF, Slide Deck PPTX (11.0 MB, 68 slides), Practice Questions & Answers (DOCX), Past Paper Questions, සහ Complete Bundle (ZIP, 40 MB). ලියාපදිංචියකින් තොරව සෘජුවම download කළ හැකිය.

Q: Digital Logic Gates (ඩිජිටල් logic දොරටු) — AND, OR, NOT, NAND, NOR, XOR truth tables සහ Boolean expressions මොනවාද?

Digital Logic Gates — Boolean expressions & truth table summary: AND Gate: Y = A·B (1 only when all inputs = 1). OR Gate: Y = A+B (1 when any input = 1). NOT Gate (Inverter): Y = Ā (output inverts input). NAND Gate: Y = ¬(A·B) — AND ට NOT = Universal gate. NOR Gate: Y = ¬(A+B) — OR ට NOT = Universal gate. XOR Gate: Y = A⊕B (1 when inputs differ). De Morgan's Theorems: ¬(A·B) = Ā+B̄ (NAND = NOT-AND); ¬(A+B) = Ā·B̄ (NOR = NOT-OR). NAND/NOR gates universal gates ලෙස, ඕනෑම logic circuit implement කළ හැකිය. A/L Engineering Technology Lesson 12 හිදී truth tables, Karnaugh maps සහ circuit simplification ඉගෙනගනී.

Question 1

A/L Engineering Technology Lesson 12 — ඉලෙක්ට්‍රොනික තාක්ෂණවේදය හි ඇතුළත් ප්‍රධාන මාතෘකා මොනවාද?

Accepted Answer

A/L Engineering Technology Lesson 12 'ඉලෙක්ට්‍රොනික තාක්ෂණවේදය' (Electronics Technology) හි ප්‍රධාන මාතෘකා: Semiconductors (P-type, N-type, PN junction), Diodes (Rectifier, Zener, LED, Photodiode), Rectifier Circuits (Half-wave, Full-wave, Bridge), Transistors (BJT NPN/PNP, FET, MOSFET — amplifier configurations), Operational Amplifiers (Inverting, Non-inverting, Comparator), Digital Logic Gates (AND, OR, NOT, NAND, NOR, XOR), Boolean Algebra & De Morgan's Theorems, Combinational Circuits (Adder, Multiplexer, Decoder), Sequential Circuits (Flip-flops SR/D/JK, Counters, Registers), සහ Microcontrollers Introduction. මෙම පාඩම Unit 3 යටතේ ET-L12 ලෙස ගැනේ.

Question 2

NPN Transistor (BJT) ක්‍රියාකාරිත්වය කෙසේද? A/L Engineering Technology exam සඳහා transistor configurations මොනවාද?

Accepted Answer

BJT (Bipolar Junction Transistor) — NPN හා PNP වශයෙන් දෙවර්ගයකි. NPN Transistor: Emitter (E), Base (B), Collector (C) — Base current (IB) control කිරීමෙන් Collector current (IC) control. IC = β × IB (β = current gain, typically 20–500). Operating Regions: Cut-off (OFF), Active (Amplifier), Saturation (ON). Configurations: Common Emitter (CE) — highest voltage gain, most used; Common Base (CB) — current gain < 1, high frequency; Common Collector (CC)/Emitter Follower — voltage gain ≈ 1, high current gain, impedance matching. A/L Engineering Technology Lesson 12 හිදී transistor biasing, load line analysis සහ amplifier circuits ඉගෙනගනී.

Question 3

A/L Engineering Technology Lesson 12 Electronics Technology notes PDF නොමිලේ download කරන්නේ කොහෙන්ද?

Accepted Answer

AL Tech Hub (altechhub.lk) හි Lesson 12 Downloads කොටසෙන් සියලු ලිපිගොනු නොමිලේ ලබාගත හැකිය: Full Notes PDF (8.0 MB, 108 pages), Semiconductor & Diode Guide, Transistor & Op-Amp Notes, Digital Logic & Boolean Algebra PDF, Sequential Circuits & Flip-Flops, Microcontroller Introduction PDF, Slide Deck PPTX (11.0 MB, 68 slides), Practice Questions & Answers (DOCX), Past Paper Questions, සහ Complete Bundle (ZIP, 40 MB). ලියාපදිංචියකින් තොරව සෘජුවම download කළ හැකිය.

Question 4

Digital Logic Gates (ඩිජිටල් logic දොරටු) — AND, OR, NOT, NAND, NOR, XOR truth tables සහ Boolean expressions මොනවාද?

Accepted Answer

Digital Logic Gates — Boolean expressions & truth table summary: AND Gate: Y = A·B (1 only when all inputs = 1). OR Gate: Y = A+B (1 when any input = 1). NOT Gate (Inverter): Y = Ā (output inverts input). NAND Gate: Y = ¬(A·B) — AND ට NOT = Universal gate. NOR Gate: Y = ¬(A+B) — OR ට NOT = Universal gate. XOR Gate: Y = A⊕B (1 when inputs differ). De Morgan's Theorems: ¬(A·B) = Ā+B̄ (NAND = NOT-AND); ¬(A+B) = Ā·B̄ (NOR = NOT-OR). NAND/NOR gates universal gates ලෙස, ඕනෑම logic circuit implement කළ හැකිය. A/L Engineering Technology Lesson 12 හිදී truth tables, Karnaugh maps සහ circuit simplification ඉගෙනගනී.

EngineeringTechnology

ඉලෙක්ට්‍රොනික තාක්ෂණවේදය —Electronics Technology

Engineering
Technology

ඉලෙක්ට්‍රොනික තාක්ෂණවේදය —
Electronics Technology