{"id":29312,"date":"2026-01-11T12:15:02","date_gmt":"2026-01-11T12:15:02","guid":{"rendered":"https:\/\/alnojoumacademy.com\/?p=29312"},"modified":"2026-02-09T11:53:02","modified_gmt":"2026-02-09T11:53:02","slug":"phys-205-ch-21","status":"publish","type":"post","link":"https:\/\/alnojoumacademy.com\/en\/phys-205-ch-21\/","title":{"rendered":"Phys 205 Ch 21"},"content":{"rendered":"<h2 style=\"text-align: center;\"><a href=\"https:\/\/alnojoumacademy.com\/courses\/psuphys205psu205\/\">Phys 205 Ch 21 Electric force<\/a><\/h2>\n<h2 style=\"text-align: center;\">\u0627\u0636\u063a\u0637 \u0639\u0644\u064a \u0635\u0648\u0631\u0629 \u0627\u0644\u0645\u0633\u0623\u0644\u0629 \u0644\u062a\u0634\u0627\u0647\u062f \u0634\u0631\u062d\u0647\u0627 \u0641\u064a\u062f\u064a\u0648<\/h2>\n<p><a href=\"https:\/\/alnojoumacademy.com\/courses\/revision-phys-205-psu\/lessons\/revisionphys205psuproblem-1-3\/\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-29313\" src=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot1-01-2-scaled.png\" alt=\"\" width=\"2560\" height=\"1606\" srcset=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot1-01-2-scaled.png 2560w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot1-01-2-300x188.png 300w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot1-01-2-1024x643.png 1024w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot1-01-2-768x482.png 768w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot1-01-2-1536x964.png 1536w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot1-01-2-2048x1285.png 2048w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot1-01-2-18x12.png 18w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot1-01-2-600x376.png 600w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h1><\/h1>\n<h1 style=\"text-align: center;\"><a href=\"https:\/\/alnojoumacademy.com\/courses\/psuphys205psu205\/\">===============================================<\/a><\/h1>\n<h1><\/h1>\n<h1><a href=\"https:\/\/alnojoumacademy.com\/courses\/revision-phys-205-psu\/lessons\/revisionphys205psuproblem-12\/\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-29314\" src=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-1-scaled.png\" alt=\"\" width=\"2560\" height=\"1606\" srcset=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-1-scaled.png 2560w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-1-300x188.png 300w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-1-1024x643.png 1024w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-1-768x482.png 768w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-1-1536x964.png 1536w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-1-2048x1285.png 2048w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-1-18x12.png 18w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-1-600x376.png 600w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/a><\/h1>\n<h1 style=\"text-align: center;\"><a href=\"https:\/\/alnojoumacademy.com\/courses\/psuphys205psu205\/\">===============================================<\/a><\/h1>\n<h1><\/h1>\n<p>&nbsp;<\/p>\n<h1><a href=\"https:\/\/alnojoumacademy.com\/courses\/revision-phys-205-psu\/lessons\/revisionphys205psuproblem-3-2\/\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-29315\" src=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-1-scaled.png\" alt=\"\" width=\"2560\" height=\"1606\" srcset=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-1-scaled.png 2560w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-1-300x188.png 300w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-1-1024x643.png 1024w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-1-768x482.png 768w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-1-1536x964.png 1536w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-1-2048x1285.png 2048w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-1-18x12.png 18w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-1-600x376.png 600w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/a><\/h1>\n<h1 style=\"text-align: center;\"><a href=\"https:\/\/alnojoumacademy.com\/courses\/psuphys205psu205\/\">===============================================<\/a><\/h1>\n<h1><\/h1>\n<h1><a href=\"https:\/\/alnojoumacademy.com\/courses\/revision-phys-205-psu\/lessons\/revisionphys205psuproblem-4-2\/\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-29318\" src=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-copy-scaled.png\" alt=\"\" width=\"2560\" height=\"1606\" srcset=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-copy-scaled.png 2560w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-copy-300x188.png 300w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-copy-1024x643.png 1024w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-copy-768x482.png 768w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-copy-1536x964.png 1536w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-copy-2048x1285.png 2048w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-copy-18x12.png 18w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot3-01-copy-600x376.png 600w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/a><\/h1>\n<h1 style=\"text-align: center;\"><a href=\"https:\/\/alnojoumacademy.com\/courses\/psuphys205psu205\/\">===============================================<\/a><\/h1>\n<h1><a href=\"https:\/\/alnojoumacademy.com\/courses\/revision-phys-205-psu\/lessons\/revisionphys205psuproblem-5-2\/\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-29317\" src=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-copy-scaled.png\" alt=\"\" width=\"2560\" height=\"1606\" srcset=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-copy-scaled.png 2560w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-copy-300x188.png 300w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-copy-1024x643.png 1024w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-copy-768x482.png 768w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-copy-1536x964.png 1536w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-copy-2048x1285.png 2048w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-copy-18x12.png 18w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/Screenshot2-01-copy-600x376.png 600w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/a><\/h1>\n<h1 style=\"text-align: center;\"><a href=\"https:\/\/alnojoumacademy.com\/courses\/psuphys205psu205\/\">===============================================<\/a><\/h1>\n<p><a href=\"https:\/\/alnojoumacademy.com\/courses\/revision-phys-205-psu\/lessons\/revisionphys205psuproblem-6-2\/\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-29352\" src=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-7-scaled.png\" alt=\"\" width=\"2560\" height=\"1436\" srcset=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-7-scaled.png 2560w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-7-300x168.png 300w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-7-1024x574.png 1024w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-7-768x431.png 768w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-7-1536x862.png 1536w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-7-2048x1149.png 2048w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-7-18x10.png 18w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-7-600x337.png 600w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/a><\/p>\n<h1 style=\"text-align: center;\"><a href=\"https:\/\/alnojoumacademy.com\/courses\/psuphys205psu205\/\">===============================================<\/a><\/h1>\n<p><a href=\"https:\/\/alnojoumacademy.com\/courses\/revision-phys-205-psu\/lessons\/revisionphys205psuproblem-7\/\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-29353\" src=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-8.png\" alt=\"\" width=\"2386\" height=\"1182\" srcset=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-8.png 2386w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-8-300x149.png 300w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-8-1024x507.png 1024w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-8-768x380.png 768w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-8-1536x761.png 1536w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-8-2048x1015.png 2048w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-8-18x9.png 18w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-8-600x297.png 600w\" sizes=\"(max-width: 2386px) 100vw, 2386px\" \/><\/a><\/p>\n<h1 style=\"text-align: center;\"><a href=\"https:\/\/alnojoumacademy.com\/courses\/psuphys205psu205\/\">===============================================<\/a><\/h1>\n<p><a href=\"https:\/\/alnojoumacademy.com\/courses\/revision-phys-205-psu\/lessons\/revisionphys205psuproblem-8\/\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-29354\" src=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-9-scaled.png\" alt=\"\" width=\"2560\" height=\"1482\" srcset=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-9-scaled.png 2560w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-9-300x174.png 300w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-9-1024x593.png 1024w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-9-768x445.png 768w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-9-1536x889.png 1536w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-9-2048x1185.png 2048w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-9-18x10.png 18w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-9-600x347.png 600w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/a><\/p>\n<h1 style=\"text-align: center;\"><a href=\"https:\/\/alnojoumacademy.com\/courses\/psuphys205psu205\/\">===============================================<\/a><\/h1>\n<p><a href=\"https:\/\/alnojoumacademy.com\/courses\/revision-phys-205-psu\/lessons\/revisionphys205psuproblem-9\/\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-29355\" src=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-10-scaled.png\" alt=\"\" width=\"2560\" height=\"1606\" srcset=\"https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-10-scaled.png 2560w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-10-300x188.png 300w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-10-1024x643.png 1024w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-10-768x482.png 768w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-10-1536x964.png 1536w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-10-2048x1285.png 2048w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-10-18x12.png 18w, https:\/\/alnojoumacademy.com\/wp-content\/uploads\/2026\/01\/PSU-Phys-205-ch-21-Revision-p-10-600x376.png 600w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/a><\/p>\n<h1 style=\"text-align: center;\"><a href=\"https:\/\/alnojoumacademy.com\/courses\/psuphys205psu205\/\">===============================================<\/a><\/h1>","protected":false},"excerpt":{"rendered":"<p>Phys 205 Ch 21 Electric force \u0627\u0636\u063a\u0637 \u0639\u0644\u064a \u0635\u0648\u0631\u0629 \u0627\u0644\u0645\u0633\u0623\u0644\u0629 \u0644\u062a\u0634\u0627\u0647\u062f \u0634\u0631\u062d\u0647\u0627 \u0641\u064a\u062f\u064a\u0648 &nbsp; =============================================== =============================================== &nbsp; =============================================== =============================================== =============================================== =============================================== =============================================== =============================================== ===============================================<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_canvas","format":"standard","meta":{"pmpro_default_level":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-29312","post","type-post","status-publish","format-standard","hentry","category-uncategorized","pmpro-has-access"],"_links":{"self":[{"href":"https:\/\/alnojoumacademy.com\/en\/wp-json\/wp\/v2\/posts\/29312","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alnojoumacademy.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alnojoumacademy.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alnojoumacademy.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/alnojoumacademy.com\/en\/wp-json\/wp\/v2\/comments?post=29312"}],"version-history":[{"count":8,"href":"https:\/\/alnojoumacademy.com\/en\/wp-json\/wp\/v2\/posts\/29312\/revisions"}],"predecessor-version":[{"id":29888,"href":"https:\/\/alnojoumacademy.com\/en\/wp-json\/wp\/v2\/posts\/29312\/revisions\/29888"}],"wp:attachment":[{"href":"https:\/\/alnojoumacademy.com\/en\/wp-json\/wp\/v2\/media?parent=29312"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alnojoumacademy.com\/en\/wp-json\/wp\/v2\/categories?post=29312"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alnojoumacademy.com\/en\/wp-json\/wp\/v2\/tags?post=29312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}