Electronics
Bayani Gaba-gaba
Electronics gives a designer a way to make products sense their surroundings, make simple decisions, and respond - switching on a light when it gets dark, sounding an alarm when a door opens, or holding a motor at a steady speed. Underneath every smart product is the same idea: an input is detected, a process decides what to do, and an output makes something happen. Learn to read that pattern and you can analyse almost any electronic circuit you meet.
This note covers the 0445 electronics objectives: drawing circuits with correct symbols and conventions; the common input, process and output components from power sources and switches through sensors and transistors to lamps, buzzers and motors; the difference between open and closed loop systems and the role of feedback; what programmable integrated circuits add to a design; and how to build and test circuits safely using both real components and virtual modelling. Concrete calculations, including a full potential-divider design, are worked through so you can apply the theory.
Manufura
- use correct symbols and conventions when drawing circuit diagrams
- show knowledge of common input, process and output components, including: - power sources - switches - movement components - light-emitting components - sound-emitting components - sensing components - transistors
- identify and show knowledge of open and closed loop systems - input, process, output and feedback
- understand the use of programmable integrated circuits
- show knowledge of building and testing of simple circuits through physical and/or virtual modelling.
Takardar Darasi
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Nazarin Darasi
Barka da kammala darasi akan Electronics. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- On a circuit diagram, what does a solid dot at the meeting point of two wires indicate? A. The wires cross but are not connected B. The wires are electrically joined at that point C. A resistor is present D. The current stops at that point Answer: B
- Which component's resistance decreases as the light falling on it increases? A. Thermistor B. Light-dependent resistor (LDR) C. Variable capacitor D. Fixed resistor Answer: B
- In an input-process-output system, which of the following is an output component? A. A light-dependent resistor B. A push switch C. A buzzer D. A thermistor Answer: C
- What is the defining feature of a closed loop control system? A. It uses a battery rather than the mains B. It senses its output and feeds that information back to correct itself C. It has no switches D. It can only switch on and off Answer: B
- An LED needs 2 V at 20 mA and runs from a 6 V supply. What value series resistor is required? A. 100 ohm B. 200 ohm C. 300 ohm D. 400 ohm Answer: B
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Littattafan da ake ba da shawarar karantawa
Yi Aikin Tambayoyin Gwaji
Kana son yin aikin tambayoyin gwaji kan Electronics? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.
Sauke Manhajar Daga Google Playstore
Duk abin da kake buƙata don yin fice a JAMB, WAEC & NECO.
