Ljudsko tijelo kao vodljivi spoj

master's thesis

• Author: Marija Čoklec
• Mentor: Nikola Poljak (mentor)
• Committee member: Nikola Poljak (predsjednik povjerenstva)
• Committee member: Emil Tafra (član povjerenstva)
• Committee member: Goran Radunović (član povjerenstva)
• Committee member: Matko Milin (član povjerenstva)
• Committee member: Igor Pažanin (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Mathematics); Zagreb
• Granter: University of Zagreb; Faculty of Science; (Department of Physics); Zagreb
• Defense date and country: 2019-09-23, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract

Jedan od osnovnih zakona koji opisuju vođenje struje je Ohmov zakon, koji govori da je iznos struje direktno proporcionalan naponu nanesenom na krajeve nekog vodiča. Za veliku većinu modernih elektroničkih elemenata ovaj zakon ne vrijedi. U diplomskom radu je dizajniran i izrađen elektronički sklop u kojem jedan tranzistor propušta struju kroz žarulju čak i na vrlo mali kontakt, koji će se ostvariti preko ruku neke osobe. Ovo je u direktnoj kontradikciji s klasičnim mišljenjem da je ljudsko tijelo slab vodič. Da bi se dodatno demonstriralo kako za takav sklop ne vrijedi Ohmov zakon, pokazat će se kako intenzitet svjetlosti žarulje ne ovisi o tome koliko osoba ostvaruje kontakt i pokušat se karakterizirati I-V karakteristika sklopa. Također, u ovom diplomskom radu osvrnuti ćemo se na moguće posljedice prilikom spajanja ljudskog tijela u strujni krug.

Abstract (english)

One of the basic laws describing the relationship between current, voltage, and resistance is called Ohm's law. Ohm’s law states that current between two points is directly proportional to the voltage between them. This law does not apply to the vast majority of modern electronic components. In this master's thesis, an electronic circuit was designed and constructed in which a transistor transmits electricity through a light bulb even for a very small contact, which will be realized through the hands of a person. This is in direct contradiction to the belief that the human body is a weak conductor. To further demonstrate that such an assembly is not governed by Ohm's law, it will be shown that the light intensity of the bulb does not depend on how many people are making a contact and we will attempt to characterize the I-V characteristic of the assembly. Also, in this thesis we will look at the possible consequences when connecting the human body to an electric circuit.

• Keywords: Ohmov zakon; elektronički sklop; strujni krug; vodič struje
• Keywords (english): Ohm's law; electronic circuit; electric circuit; electricity conductor
• Language: croatian
• URN:NBN: urn:nbn:hr:217:468831
• Study programme: Title: Mathematics and Physics Education; specializations in: Mathematics and Physics Education; Course: Mathematics and Physics Education; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: magistar/magistra edukacije matematike i fizike (magistar/magistra edukacije matematike i fizike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-01-23 10:38:33