Kulonmetar i primjena u nastavi fizike

master's thesis

• Title (english): Coulombmeter and its educational use
• Author: Leonardo Krleža
• Mentor: Katarina Jeličić (mentor)
• Committee member: Katarina Jeličić (predsjednik povjerenstva)
• Committee member: Željko Skoko (član povjerenstva)
• Committee member: Goranka Bilalbegović (član povjerenstva)
• Committee member: Ivica Smolić (član povjerenstva)
• Committee member: Maja Planinić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Physics); Zagreb
• Defense date and country: 2020-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract

Elektricitet je dio obaveznog sadržaja nastave fizike u mnogim školama u Hrvatskoj. Mnoštvo pokusa iz elektriciteta moguće je izvesti u učionici, no zbog tehničkih i financijskih nedostataka u nastavi fizike ne koristi se kulonmetar. Kulonmetar je instrument koji ima mogućnost kvantitativnog mjerenja električnog naboja pohranjenog na nekom tijelu. Njime je moguće jednostavnije i praktičnije izvođenje postojećih pokusa, kao i nekoliko rijetkih pokusa koje je nemoguće izvesti bez kulonmetra. U sklopu rada detaljno će se opisati izrada i prikazati konstrukcija digitalnog kulonmetra s mogućnosti prikaza količine naboja, napona kondenzatora, broja elementarnih naboja te pohranjene energije. Svi dijelovi potrebni za izradu kulonmetra su standardni i široko dostupni u prodavaonicama elektroničkih komponenata, te se ovaj rad može koristiti kao uputa za konstruiranje instrumenta. Dodatno, prikazat će se pokusi kojima se može pokazati: nabijanje tijela indukcijom, posredno djelovanje fotoelektričnog efekta i termoelektronske emisije, raspodjela naboja na vodljivim tijelima te praktična primjena Faraday-evog kaveza. Svi navedeni pokusi obrađeni su na način pogodan za izvođenje kulonmetrom.

Abstract (english)

Electricity is part of the compulsory content of physics curriculum taught in many schools in Croatia. A lot of experiments regarding electricity are available for classroom demonstrations but many technical and financial constraints are preventing the usage of coulombmeter. Coulombmeter is an instrument that can quantitatively measure the amount of electric charge on a body. With introduction of coulombmeter as a standard piece of classroom equipment it becomes possible to demonstrate some of the rarely shown experiments. Also, by using coulombmeter it becomes much easier and more practical to demonstrate some of the classical experiments. The goal of this thesis is to construct and assemble a digital coulombmeter that is capable of measuring charge, capacitor voltage, number of individual charges and the energy stored in a capacitor. All the required parts and components are readily available in electronic components stores. This thesis is meant to be used as a guide for construction of the instrument. This thesis also contains a set of experiments that will demonstrate electric charge induction, photoelectric effect and thermionic emission, conductor surface charge distribution and practical application of Faradays cage. All mentioned experiments are designed to be performed using a digital coulombmeter.

• Keywords: elektricitet; pokusi iz elektriciteta za srednju i osnovnu školu; kulonmetar; kapacitet; Faraday; naboj
• Keywords (english): electricity; experiments in electricity in high school and primary school education; coulombmeter; capacitance; Faraday; charge
• Language: croatian
• URN:NBN: urn:nbn:hr:217:626940
• Study programme: Title: Physics and Computer Science; specializations in: Education; Course: Education; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: magistar/magistra fizike i informatike (magistar/magistra fizike i informatike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-01-08 10:47:55