SHS2 Applied Technology · Semester 2 Week 20: Electronic Components and Circuits

Lesson notes

Learning Objectives

Indicator: 2.5.2.LI.12 - Apply knowledge of electronic components in designing circuits

By the end of the lesson, learners can:

Explain the function of each major electronic component (resistor, capacitor, transistor, diode, and cell) in a circuit design context.
Select appropriate component values (resistance, capacitance, transistor type) for a given circuit function, such as a fire alarm or rain alarm.
Design a simple electronic circuit schematic for a specified application using the correct component symbols and connections.
Justify component choices in a circuit design by referring to the component’s electrical characteristics (e.g., voltage rating, gain, polarity).
Simulate a designed circuit using Multisim software and verify that the circuit performs the intended function.

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Curriculum details

Strand: Electrical and Electronic Technology (Strand 5)
Sub-strand: Electronic Components and Circuits (5.2)
Content standard: 2.5.2.CS.1 - 2.5.2.CS.1 Demonstrate knowledge and understanding of electronic measuring instrument and how to use them to take measurements 2.5.2.LO.1 Demonstrate knowledge and understanding of electronic components and use them to design and construct electronic circuits.
Indicator: 2.5.2.LI.12 - Apply knowledge of electronic components in designing circuits
Suggested placement: Semester 2, Week 20 (Week 40 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: NaCCA curriculum document, p. 126

Exemplars (from the NaCCA curriculum)

Proposed materials to be used:
1. Fire alarm circuit:
- Resistors (470k ω ,100k ω ,and 1k ω )
- Capacitors (2.2 µf, 100µf)
- Diode (in4007)
- Transistors (npn) (ac 128, bc 128)
- Transistor (pnp) (bc 117)
- Cell (9v)
2. Rain alarm circuit
- Probes
- Resistors (330kilohms,10kilohms)
- Transistors. (bc548 and bc558)
- Speaker
- Capacitor. (0.1mircofarad)
- Cell (3v)

Assessment (2.5.2.AS.12). The document marks these depth-of-knowledge levels for this indicator: Level 2 Skills of conceptual understanding; Level 3 Strategic reasoning.

Teaching and Learning Materials:
- Computers installed with multism software
- Resistors, Capacitors, Inductors
- multimeters
- the use of the internet