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Hoofstuk 5 – Elektroniese komponente ................................................................................................79 Inleiding ............................................................................................................................................................................80 Weerstande met vaste waarde ...........................................................................................................................80 LAR (Ligafhanklike weerstand) ......................................................................................................................84 Statiese elektrisiteit ...................................................................................................................................................86 Die kapasitor .................................................................................................................................................................88 Lading en energie gestoor ...................................................................................................................................90 Kapasitors in serie en parallel ...........................................................................................................................91 Meer oor kapasitors..................................................................................................................................................96 Halfgeleiers .....................................................................................................................................................................99 Diode ..............................................................................................................................................................................100 Zener-diode.................................................................................................................................................................103 Glimdiode (LED) ....................................................................................................................................................104 Transistor ......................................................................................................................................................................106
Hoofstuk 6 – Elektriese stroombane ...................................................................................................123 Inleiding .........................................................................................................................................................................124 Distribusie ....................................................................................................................................................................124 Enkelfasige stroombane .....................................................................................................................................124
Hoofstuk 7 – Beveiligingstoestelle ........................................................................................................135 Inleiding .........................................................................................................................................................................136 Beveiliging ....................................................................................................................................................................136 Sekerings .......................................................................................................................................................................136 Miniatuurkringbrekers (MKB) .....................................................................................................................138 Magnetiese stroombrekers ...............................................................................................................................138 Termiese magnetiese stroombrekers .......................................................................................................138 Aardlekbeveiliging .................................................................................................................................................139
Hoofstuk 8 – Beginsels van magnetisme ...........................................................................................143 Inleiding .........................................................................................................................................................................144 Natuurlike magnetisme vs Elektromagnetisme ...............................................................................144 Oersted se eksperiment ......................................................................................................................................145 Magneetveld om ’n solenoïede ......................................................................................................................146 Faraday se wet ...........................................................................................................................................................148 Lenz se wet ...................................................................................................................................................................149 Induktors .......................................................................................................................................................................153 Selfinduktansie .........................................................................................................................................................156
Hoofstuk 9 – Logiese konsepte ..................................................................................................................165 Inleiding .........................................................................................................................................................................166 Digitaal teenoor analoog ...................................................................................................................................166 Binêr .................................................................................................................................................................................167 Getallestelsels in rekenaars ..............................................................................................................................167 Tel in die binêre stelsel ........................................................................................................................................167 Optel .................................................................................................................................................................................169 Aftrek ...............................................................................................................................................................................169 Vermenigvuldiging ................................................................................................................................................170 Omskakeling van desimaal na binêr .........................................................................................................170 Omskakeling van binêr na desimaal .........................................................................................................171 Logiese Lekke .............................................................................................................................................................172
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