{"id":15823,"date":"2024-09-17T11:52:51","date_gmt":"2024-09-17T14:52:51","guid":{"rendered":"https:\/\/xequematenem.com.br\/blog\/?p=15823"},"modified":"2024-09-19T09:49:54","modified_gmt":"2024-09-19T12:49:54","slug":"questao-98-amarelo-enem-2023","status":"publish","type":"post","link":"https:\/\/xequematenem.com.br\/blog\/questao-98-amarelo-enem-2023\/","title":{"rendered":"Quest\u00e3o 098 AMARELO &#8211; ENEM 2023"},"content":{"rendered":"\n<p>O circuito com tr\u00eas l\u00e2mpadas incandescentes id\u00eanticas, representado na figura, consiste em uma associa\u00e7\u00e3o mista de resistores. Cada l\u00e2mpada (L<sub>1<\/sub> , L<sub>2<\/sub>e &nbsp;L<sub>3<\/sub> ) \u00e9 associada, em paralelo, a um resistor de resist\u00eancia R, formando um conjunto. Esses conjuntos s\u00e3o associados em s\u00e9rie, tendo todas as l\u00e2mpadas o mesmo brilho quando ligadas \u00e0 fonte de energia. Ap\u00f3s v\u00e1rios dias em uso, apenas a l\u00e2mpada L<sub>2<\/sub> queima, enquanto as demais permanecem acesas.<\/p>\n\n\n\n<p>Em rela\u00e7\u00e3o \u00e0 situa\u00e7\u00e3o em que todas as l\u00e2mpadas funcionam, ap\u00f3s a queima de L<sub>2<\/sub>, os brilhos das l\u00e2mpadas ser\u00e3o<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"339\" height=\"194\" src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-234.png\" alt=\"\" class=\"wp-image-15824\" title=\"\" srcset=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-234.png 339w, https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-234-300x172.png 300w\" sizes=\"(max-width: 339px) 100vw, 339px\" \/><\/figure>\n\n\n\n<p>A) os mesmos.<\/p>\n\n\n\n<p>B) mais intensos.<\/p>\n\n\n\n<p>C) menos intensos.&nbsp;<\/p>\n\n\n\n<p>D) menos intenso para L1 e o mesmo para &nbsp;L<sub>3<\/sub>.&nbsp;<\/p>\n\n\n\n<p>E) mais intenso para L1 e menos intenso para &nbsp;L<sub>3<\/sub>.<\/p>\n\n\n\n<p class=\"has-text-align-center has-large-font-size\"><strong>Solu\u00e7\u00e3o<\/strong><\/p>\n\n\n\n<p>O brilho das l\u00e2mpadas ser\u00e3o menos intensos ap\u00f3s a queima da l\u00e2mpada L<sub>2<\/sub>, pois ela est\u00e1 em paralelo com uma resist\u00eancia R, assim que a l\u00e2mpada L<sub>2<\/sub> queima a resist\u00eancia equivalente&nbsp; entre R e L<sub>2<\/sub> aumenta passando a ser somente o valor de R:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"334\" height=\"45\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-235.png\" alt=\"\" class=\"wp-image-15825 lazyload\" title=\"\" data-srcset=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-235.png 334w, https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-235-300x40.png 300w\" data-sizes=\"(max-width: 334px) 100vw, 334px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 334px; --smush-placeholder-aspect-ratio: 334\/45;\" \/><\/figure>\n\n\n\n<p>dessa forma a resist\u00eancia total do circuito aumenta:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"215\" height=\"34\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-236.png\" alt=\"\" class=\"wp-image-15826 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 215px; --smush-placeholder-aspect-ratio: 215\/34;\"><\/figure>\n\n\n\n<p>com a queima de L<sub>2<\/sub>:&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"221\" height=\"37\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-238.png\" alt=\"\" class=\"wp-image-15828 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 221px; --smush-placeholder-aspect-ratio: 221\/37;\"><\/figure>\n\n\n\n<p>sendo que:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"95\" height=\"32\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-237.png\" alt=\"\" class=\"wp-image-15827 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 95px; --smush-placeholder-aspect-ratio: 95\/32;\"><\/figure>\n\n\n\n<p>Sendo assim:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"120\" height=\"39\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-239.png\" alt=\"\" class=\"wp-image-15829 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 120px; --smush-placeholder-aspect-ratio: 120\/39;\"><\/figure>\n\n\n\n<p>Com o aumento da resist\u00eancia e voltagem da bateria constante, a corrente el\u00e9trica diminui:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"136\" height=\"30\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/09\/image-240.png\" alt=\"\" class=\"wp-image-15830 lazyload\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 136px; --smush-placeholder-aspect-ratio: 136\/30;\"><\/figure>\n\n\n\n<p>dessa forma a corrente que passa pelo circuito \u00e9 menor, e por isso as l\u00e2mpadas ir\u00e3o diminuir o brilho<\/p>\n\n\n\n<p><strong>Alternativa C<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>O circuito com tr\u00eas l\u00e2mpadas incandescentes id\u00eanticas, representado na figura, consiste em uma associa\u00e7\u00e3o mista de resistores. Cada l\u00e2mpada (L1 , L2e &nbsp;L3 ) \u00e9 associada, em paralelo, a um resistor de resist\u00eancia R, formando um conjunto. Esses conjuntos s\u00e3o associados em s\u00e9rie, tendo todas as l\u00e2mpadas o mesmo brilho quando ligadas \u00e0 fonte de [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":15824,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,76],"tags":[],"area-do-conhecimento":[116,121],"assunto":[],"class_list":["post-15823","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-questoes-do-enem","category-76","area-do-conhecimento-ciencias-da-natureza-e-suas-tecnologias","area-do-conhecimento-fisica"],"_links":{"self":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/15823","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/comments?post=15823"}],"version-history":[{"count":3,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/15823\/revisions"}],"predecessor-version":[{"id":16151,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/15823\/revisions\/16151"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/media\/15824"}],"wp:attachment":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/media?parent=15823"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/categories?post=15823"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/tags?post=15823"},{"taxonomy":"area-do-conhecimento","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/area-do-conhecimento?post=15823"},{"taxonomy":"assunto","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/assunto?post=15823"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}