{"id":2413,"date":"2023-04-18T21:18:22","date_gmt":"2023-04-18T19:18:22","guid":{"rendered":"https:\/\/mxth.dk\/?page_id=2413"},"modified":"2023-08-23T10:07:54","modified_gmt":"2023-08-23T08:07:54","slug":"forsoeg-op-og-afladning-af-kapacitorer","status":"publish","type":"page","link":"https:\/\/mxth.dk\/?page_id=2413","title":{"rendered":"Fors\u00f8g – op- og afladning af kapacitorer"},"content":{"rendered":"\n
<\/span>
<\/div>

FORS\u00d8G<\/p>\n\n

op- og afladning af kapacitorer<\/p><\/div><\/div>\n\n\n

Photo by Harrison Broadbent<\/a> on Unsplash<\/a><\/p>\n\n\n

Vi skal se lidt p\u00e5 op- og afladning af kapacitorer. Vi starter med at se p\u00e5 en enkelt kapacitor og herefter ser vi p\u00e5 n\u00e5r vi kobler to i en serie- eller parallelforbindelse.<\/p>\n\n\n\n

Op- og afladning af en enkelt kapacitor<\/h4>\n\n\n\n

Vi vil starte med at m\u00e5le op- og afladningen p\u00e5 en enkelt kapacitor. Form\u00e5let med dette er at vi kan m\u00e5le p\u00e5 en kapacitor med en kendt kapacitans og derved se om vi ud fra afladningskurven kan beregne hvad kapacitansen af kapacitoren er. <\/p>\n\n\n\n

Apparatur<\/h5>\n\n\n
    \n
  • breadboard<\/li>\n\n\n\n
  • 100 \u00b5F kapacitor<\/li>\n\n\n\n
  • resistor<\/li>\n\n\n\n
  • batteripakke (4,5V)<\/li>\n\n\n\n
  • jumpwire<\/li>\n\n\n\n
  • sp\u00e6nding-str\u00f8m sensor (PASCO: PS-2115)<\/li>\n\n\n\n
  • USB-adapter (PASCO)<\/li>\n\n\n\n
  • capstone (PASCO)<\/li>\n<\/ul>\n\n\n
    Fremgangsm\u00e5de<\/h5>\n\n\n
      \n
    1. p\u00e5 breadboardet s\u00e6ttes resistoren og kapacitoren i serieforbindelse<\/li>\n\n\n\n
    2. forbind batteripakken med seriekoblingen<\/li>\n\n\n\n
    3. tilslut sp\u00e6nding-str\u00f8m sensoren til kapacitoren s\u00e5ledes at den m\u00e5ler sp\u00e6ndingsfaldet over kapacitoren<\/li>\n\n\n\n
    4. tilslut sp\u00e6nding-str\u00f8m sensoren til computeren og s\u00e6t capstone til at samle data i et koordinatsystem med tiden ud af f\u00f8rsteaksen og sp\u00e6ndingen ud af andenaksen<\/li>\n\n\n\n
    5. start dataopsamling i capstone<\/li>\n\n\n\n
    6. t\u00e6nd for batteripakken<\/li>\n\n\n\n
    7. n\u00e5r sp\u00e6ndingen p\u00e5 kapacitoren er n\u00e5et sit maksimum, fjernes batteripakkes tilslutning til seriekoblingen s\u00e5 opladningen afbryde og hver ende i seriekoblingen forbindes nu med en jumpwire s\u00e5ledes at afladningen af kapacitoren begynder igennem resistoren (NB.: desto hurtigere afkoblingen af batteripakken og tilslutningen af jumpwiren sker desto mindre tab opleves der i dataopsamlingen<\/em>)<\/li>\n<\/ol>\n\n\n

      Op- og afladning af en parallelkobling af kapacitor<\/p>\n\n\n\n

      I skal nu lave et kredsl\u00f8b hvor to kapacitorer er forbundet i en parallelkobling og de parallelforbundne kapacitorer er i serie med en resistor.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Vi skal se lidt p\u00e5 op- og afladning af kapacitorer. Vi starter med at se p\u00e5 en enkelt kapacitor og herefter ser vi p\u00e5 n\u00e5r vi kobler to i en serie- eller parallelforbindelse.<\/p>\n","protected":false},"author":1,"featured_media":2414,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ub_ctt_via":"","editor_plus_copied_stylings":"{}","footnotes":""},"categories":[27,2],"tags":[],"class_list":["post-2413","page","type-page","status-publish","has-post-thumbnail","hentry","category-forsoeg","category-fysik"],"featured_image_src":"https:\/\/i0.wp.com\/mxth.dk\/wp-content\/uploads\/2023\/04\/harrison-broadbent-FdjVf8XFiR0-unsplash-scaled.jpg?fit=2560%2C1441&ssl=1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/pages\/2413","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mxth.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2413"}],"version-history":[{"count":7,"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/pages\/2413\/revisions"}],"predecessor-version":[{"id":2617,"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/pages\/2413\/revisions\/2617"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mxth.dk\/index.php?rest_route=\/wp\/v2\/media\/2414"}],"wp:attachment":[{"href":"https:\/\/mxth.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mxth.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2413"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mxth.dk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}