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Questions cover circuit components and their functions, resistor colour coding and calculations, thermistor resistance prediction from a temperature table, series and parallel resistance with switch states, power dissipation in a resistor, logic gates and truth tables, simulation error identification, wiring techniques and verification methods, and testing logic chip inputs/outputs with a logic probe set for TTL and pulse.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/exam/","Exam",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/practical-electronics-part-1-attempt-all-questions/489179/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/practical-electronics-part-1-attempt-all-questions/489179.png","ImageObject",300,407,{"name":42,"@type":43},"dbqoiu","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-20","2026-10-01",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",7,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What are the key instructions for completing the paper?","Question",{"text":63,"@type":64},"Fill in the boxes and read printed instructions below. Attempt ALL questions, write answers clearly in the provided spaces, use blue or black ink, and give the booklet to the invigilator before leaving to avoid losing marks.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"How is the resistance of a resistor determined in the questions?",{"text":68,"@type":64},"The paper uses resistor colour coding shown and requires determining the resistance, stating the percentage tolerance, and calculating maximum and minimum resistance values in ohms.",{"name":70,"@type":61,"acceptedAnswer":71},"What does the logic section require?",{"text":72,"@type":64},"It includes completing truth tables for a NOR gate and a multi-input logic circuit, and determining logic states that produce a given output from a displayed logic gate diagram.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},489179,1791298408,{"code":4,"msg":82,"data":83},"success",[84,88,92,95,100,105,109,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":93,"slug":94},70,"exam",{"id":96,"doc_module":4,"doc_module_name":25,"category_name":97,"show_sort_weight":98,"slug":99},5,"Comic",60,"comic",{"id":101,"doc_module":4,"doc_module_name":25,"category_name":102,"show_sort_weight":103,"slug":104},6,"Technology",50,"technology",{"id":55,"doc_module":4,"doc_module_name":25,"category_name":106,"show_sort_weight":107,"slug":108},"Healthcare",40,"healthcare",{"id":110,"doc_module":4,"doc_module_name":25,"category_name":111,"show_sort_weight":112,"slug":113},8,"Research & Report",30,"research-report",{"id":115,"doc_module":4,"doc_module_name":25,"category_name":116,"show_sort_weight":117,"slug":118},9,"Religion & Spirituality",20,"religion-spirituality",{"id":117,"doc_module":4,"doc_module_name":25,"category_name":120,"show_sort_weight":117,"slug":121},"World Cup","world-cup",{"id":123,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":123,"slug":125},10,"Lifestyle","lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":96,"slug":129},19,"General","general",{"code":4,"msg":82,"data":131},{"doc_id":79,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":33,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":139,"language":140,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":12,"update_tm":144,"read_time":98,"preview_page_count":4},3985747862462,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","FOR OFFICIAL USE  \nN5  \n\n|  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- |\n\nNational Quali􀃛cations 2025  \nMark  \nX860/75/02  \nMONDAY, 12 MAY 1:30 PM – 2:30 PM  \nPractical Electronics  \n*X8607502*  \nFill in these boxes and read what is printed below.  \nFull name of centre Town  \n\n|  |  |  |\n| --- | --- | --- |\n\nForename(s) Surname Number of seat  \n\n|  |  |  |  |  |\n| --- | --- | --- | --- | --- |\n\nDate of birth  \nDay Month Year Scottish candidate number  \n\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n\nTotal marks—60  \nAttempt ALL questions.  \nYou may use a calculator.  \nWrite your answers clearly in the spaces provided in this booklet. Additional space for answers is provided at the end of this booklet. If you use this space you must clearly identify the question number you are attempting.  \nUse blue or black ink.  \nBefore leaving the examination room you must give this booklet to the Invigilator; if you do not, you may lose all the marks for this paper.  \n*X860750201*  \nA/HTP  \nTotal marks—60  \nAttempt ALL questions  \n1. The table below gives information about some circuit components. Some of the boxes have been left blank.  \n(a) Complete the table for the missing entries.  \n\n| Component name | Symbol | Function |\n| --- | --- | --- |\n| Bipolar transistor | | electronic switch |\n| Cell | |  |\n|  | ~~ V ~~\u003Cbr>| measures voltage across a circuit |\n| Lamp |  | converts electrical energy into light energy |\n\n*X860750202* page 02  \nMARKS  \n3  \n\n| DO NOT\u003Cbr>WRITE IN\u003Cbr>THIS\u003Cbr>MARGIN |\n| --- |\n|  |\n\n1. (continued)  \n(b) A pupil selects a resistor with the colour coding as shown below.  \nblue red brown gold  \nUse the information in the data sheet to answer the questions below.  \n(i) Determine the resistance of the resistor.  \n(ii) State the percentage tolerance of this resistor.  \n(iii) Determine the maximum and minimum resistance of this resistor inohms.  \n[Turn over  \n*X860750203*  \nMARKS  \n1  \n1  \n2  \npage 03  \n| DO NOT\u003Cbr>WRITE IN\u003Cbr>THIS\u003Cbr>MARGIN |\n| --- |\n|  |\n\n2. The table below shows information about the resistance of a thermistor at different temperatures.  \n\n| Temperature\u003Cbr>(°C) | Resistance\u003Cbr>(kΩ) |\n| --- | --- |\n| 20 | 50.0 |\n| 40 | 30.0 |\n| 60 |  |\n|  | 10.0 |\n| 80 |  |\n\nComplete the table above to predict the resistance of the thermistor at 60 °C.  \n3. A circuit diagram is shown below.  \n+20 V 0 V  \n20 Ω  \nS  \nR2  \n5 Ω  \n(a) Switch S is open.  \n(i) Calculate the total resistance of this circuit. Space for working and answer  \n(ii) Calculate the current in this circuit. Space for working and answer  \n*X860750204*  \npage 04  \nMARKS  \n1  \n1  \n3  \n\n| DO NOT\u003Cbr>WRITE IN\u003Cbr>THIS\u003Cbr>MARGIN |\n| --- |\n|  |\n\n3. (a) (continued)  \n(iii) Calculate the power dissipated in resistor R1.  \nSpace for working and answer  \n(b) Switch S is now closed.  \n(i) Calculate the effective resistance of R2 and R3 in parallel. Space for working and answer  \n(ii) Calculate the overall circuit resistance.  \nSpace for working and answer  \n*X860750205*  \npage 05  \nMARKS  \n3  \n3  \n1  \n[Turn over  \n\n| DO NOT\u003Cbr>WRITE IN\u003Cbr>THIS\u003Cbr>MARGIN |\n| --- |\n|  |\n\n4. There are many different types of logic gate used in electronics.  \n(a) Complete the truth table for an NOR gate.  \n\n| A | B | Output |\n| --- | --- | --- |\n| 0 | 0 |  |\n| 0 | 1 |  |\n| 1 | 0 |  |\n| 1 | 1 |  |\n\n(An additional truth table, if required, can be found on page 20.)  \n(b) A logic gate is shown below, with given logic states.  \nDetermine the logic state of X that would produce the output shown.  \n*X860750206*  \npage 06  \nMARKS  \n1  \n1  \n\n| DO NOT\u003Cbr>WRITE IN\u003Cbr>THIS\u003Cbr>MARGIN |\n| --- |\n|  |\n\n4. (continued)  \n(c) Complete the truth table for the logic circuit shown below.  \nA  \nB  \nC  \n| A | B | C | D | E | F | Z |\n| --- | --- | --- | --- | --- | --- | --- |\n| 0 | 0 | 0 |  |  |  |  |\n| 0 | 0 | 1 |  |  |  |  |\n| 0 | 1 | 0 |  |  |  |  |\n| 0 | 1 | 1 |  |  |  |  |\n| 1 | 0","cbCaicABFRpklUiG","https://ap.wps.com/l/cbCaicABFRpklUiG","pdf",1289821,24,"English","# Instructions\n## Circuit components and data tables\n## Resistors and thermistors\n## Circuit calculations with switch states\n## Logic gates and truth tables\n## Simulation errors and wiring techniques\n## Logic probe testing","[{\"question\":\"What are the key instructions for completing the paper?\",\"answer\":\"Fill in the boxes and read printed instructions below. Attempt ALL questions, write answers clearly in the provided spaces, use blue or black ink, and give the booklet to the invigilator before leaving to avoid losing marks.\"},{\"question\":\"How is the resistance of a resistor determined in the questions?\",\"answer\":\"The paper uses resistor colour coding shown and requires determining the resistance, stating the percentage tolerance, and calculating maximum and minimum resistance values in ohms.\"},{\"question\":\"What does the logic section require?\",\"answer\":\"It includes completing truth tables for a NOR gate and a multi-input logic circuit, and determining logic states that produce a given output from a displayed logic gate diagram.\"}]","Practical Electronics - Part 1 - Attempt ALL questions | PDF",1790821051]