{"common":{"save":0,"post_id":"9165","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9617","post_id":"9165","mon_id":"1159539","chapter_id":"1159897","question":"<p>Trong m\u1ed9t m\u1ea1ch \u0111i\u1ec7n \u0111\u01a1n gi\u1ea3n, n\u1ebfu \u0111\u1ed5i v\u1ecb trí hai \u0111\u1ea7u dây n\u1ed1i pin, hi\u1ec7n t\u01b0\u1ee3ng nào x\u1ea3y ra?<\/p>","options":["A. Dòng \u0111i\u1ec7n \u0111\u1ed5i chi\u1ec1u.","B. \u0110èn sáng h\u01a1n.","C. \u0110èn không sáng.","D. Không có gì thay \u0111\u1ed5i."],"correct":"1","level":"2","hint":"<p>Tác d\u1ee5ng c\u1ee7a vi\u1ec7c \u0111\u1ed5i chi\u1ec1u dòng \u0111i\u1ec7n (SGK trang 95).<\/p>","answer":"<p><strong data-end=\"2615\" data-start=\"2596\">\u0110áp án \u0111úng là:<\/strong> A. Dòng \u0111i\u1ec7n \u0111\u1ed5i chi\u1ec1u.<br data-end=\"2642\" data-start=\"2639\" \/><strong data-end=\"2657\" data-start=\"2642\">Gi\u1ea3i thích:<\/strong><\/p><p>Khi \u0111\u1ed5i v\u1ecb trí hai c\u1ef1c c\u1ee7a ngu\u1ed3n, chi\u1ec1u dòng \u0111i\u1ec7n c\u0169ng \u0111\u1ed5i theo.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-04 15:05:54","option_type":"txt","len":2},{"id":"9618","post_id":"9165","mon_id":"1159539","chapter_id":"1159897","question":"<p>V\u1eadt nào sau \u0111ây là v\u1eadt cách \u0111i\u1ec7n?<\/p>","options":["A. M\u1ea3nh nhôm.","B. Thanh g\u1ed7 khô.","C. Dây \u0111\u1ed3ng.","D. \u0110inh s\u1eaft."],"correct":"2","level":"2","hint":"<p>Nh\u1eadn bi\u1ebft v\u1eadt d\u1eabn và v\u1eadt cách \u0111i\u1ec7n (SGK trang 97).<\/p>","answer":"<p data-end=\"3014\" data-start=\"2903\"><strong data-end=\"2922\" data-start=\"2903\">\u0110áp án \u0111úng là:<\/strong> B. Thanh g\u1ed7 khô.<br data-end=\"2942\" data-start=\"2939\" \/><strong data-end=\"2957\" data-start=\"2942\">Gi\u1ea3i thích:<\/strong><\/p><p data-end=\"3014\" data-start=\"2903\">G\u1ed7 khô không cho dòng \u0111i\u1ec7n \u0111i qua nên là ch\u1ea5t cách \u0111i\u1ec7n.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-04 15:06:42","option_type":"txt","len":2},{"id":"9619","post_id":"9165","mon_id":"1159539","chapter_id":"1159897","question":"<p>Khi nào dòng \u0111i\u1ec7n không th\u1ec3 ch\u1ea1y qua m\u1ea1ch?<\/p>","options":["A. Dùng bóng \u0111èn nh\u1ecf h\u01a1n.","B. S\u1eed d\u1ee5ng pin m\u1edbi.","C. Công t\u1eafc m\u1edf.","D. Dây d\u1eabn dài h\u01a1n."],"correct":"3","level":"2","hint":"<p>\u0110i\u1ec1u ki\u1ec7n \u0111\u1ec3 có dòng \u0111i\u1ec7n (SGK trang 96).<\/p>","answer":"<p data-end=\"3323\" data-start=\"3220\"><strong data-end=\"3239\" data-start=\"3220\">\u0110áp án \u0111úng là:<\/strong> C. Công t\u1eafc m\u1edf.<br data-end=\"3258\" data-start=\"3255\" \/><strong data-end=\"3273\" data-start=\"3258\">Gi\u1ea3i thích:<\/strong><\/p><p data-end=\"3323\" data-start=\"3220\">Khi công t\u1eafc m\u1edf, m\u1ea1ch b\u1ecb h\u1edf → không có dòng \u0111i\u1ec7n.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-04 15:07:25","option_type":"txt","len":2}]}
