{"common":{"save":0,"post_id":"9219","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9757","post_id":"9219","mon_id":"1159539","chapter_id":"1159897","question":"<p>M\u1ed9t ampe k\u1ebf có gi\u1edbi h\u1ea1n \u0111o là 1,5A. H\u1ecdc sinh m\u1eafc sai và dòng \u0111i\u1ec7n ch\u1ea1y qua lên \u0111\u1ebfn 3A. \u0110i\u1ec1u gì có th\u1ec3 x\u1ea3y ra?<\/p>","options":["A. M\u1ea1ch \u0111i\u1ec7n v\u1eabn ho\u1ea1t \u0111\u1ed9ng bình th\u01b0\u1eddng","B. Ampe k\u1ebf ch\u1ec9 sai s\u1ed1 nh\u01b0ng không h\u1ecfng","C. Ampe k\u1ebf có th\u1ec3 b\u1ecb h\u1ecfng do quá t\u1ea3i","D. Dòng \u0111i\u1ec7n b\u1ecb ng\u1eaft t\u1ef1 \u0111\u1ed9ng"],"correct":"3","level":"3","hint":"<p>Ampe k\u1ebf ch\u1ec9 \u0111o \u0111úng khi không v\u01b0\u1ee3t quá gi\u1edbi h\u1ea1n \u0111o cho phép.<\/p>","answer":"<p><strong data-end=\"690\" data-start=\"634\">\u0110áp án \u0111úng là: C. Ampe k\u1ebf có th\u1ec3 b\u1ecb h\u1ecfng do quá t\u1ea3i<\/strong><br data-end=\"693\" data-start=\"690\" \/><strong data-end=\"708\" data-start=\"693\">Gi\u1ea3i thích:<\/strong><\/p><p>Khi dòng \u0111i\u1ec7n v\u01b0\u1ee3t quá m\u1ee9c cho phép, ampe k\u1ebf có th\u1ec3 b\u1ecb cháy ho\u1eb7c h\u1ecfng c\u01a1 c\u1ea5u \u0111o.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-10 15:06:43","option_type":"txt","len":2},{"id":"9758","post_id":"9219","mon_id":"1159539","chapter_id":"1159897","question":"<p>M\u1ed9t bóng \u0111èn ch\u1ec9 sáng bình th\u01b0\u1eddng \u1edf hi\u1ec7u \u0111i\u1ec7n th\u1ebf 4,5V. N\u1ebfu m\u1eafc bóng \u0111èn vào ngu\u1ed3n \u0111i\u1ec7n 9V thì hi\u1ec7n t\u01b0\u1ee3ng x\u1ea3y ra là:<\/p>","options":["A. Bóng \u0111èn sáng m\u1ea1nh h\u01a1n bình th\u01b0\u1eddng","B. Bóng \u0111èn sáng y\u1ebfu h\u01a1n","C. Bóng \u0111èn không sáng","D. Bóng \u0111èn có th\u1ec3 b\u1ecb cháy"],"correct":"4","level":"3","hint":"<p>Dòng \u0111i\u1ec7n t\u0103ng quá m\u1ee9c \u0111\u1ecbnh m\u1ee9c gây h\u01b0 h\u1ea1i.<\/p>","answer":"<p><strong data-end=\"1152\" data-start=\"1106\">\u0110áp án \u0111úng là: D. Bóng \u0111èn có th\u1ec3 b\u1ecb cháy<\/strong><br data-end=\"1155\" data-start=\"1152\" \/><strong data-end=\"1170\" data-start=\"1155\">Gi\u1ea3i thích:<\/strong><\/p><p>Hi\u1ec7u \u0111i\u1ec7n th\u1ebf cao → dòng \u0111i\u1ec7n t\u0103ng v\u01b0\u1ee3t m\u1ee9c cho phép c\u1ee7a dây tóc → bóng \u0111èn b\u1ecb cháy.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-10 15:38:55","option_type":"txt","len":3},{"id":"9759","post_id":"9219","mon_id":"1159539","chapter_id":"1159897","question":"<p>M\u1ed9t h\u1ecdc sinh m\u1eafc m\u1ea1ch \u0111i\u1ec7n g\u1ed3m ngu\u1ed3n \u0111i\u1ec7n 6V, m\u1ed9t bóng \u0111èn 3V và m\u1ed9t công t\u1eafc. Sau khi \u0111óng công t\u1eafc, \u0111èn sáng r\u1ea5t m\u1ea1nh r\u1ed3i cháy. Nguyên nhân là:<\/p>","options":["A. Công t\u1eafc h\u1ecfng","B. Bóng \u0111èn sai \u0111\u1ecbnh m\u1ee9c hi\u1ec7u \u0111i\u1ec7n th\u1ebf","C. Dây d\u1eabn quá dài","D. Ngu\u1ed3n \u0111i\u1ec7n b\u1ecb y\u1ebfu"],"correct":"2","level":"3","hint":"<p>So sánh hi\u1ec7u \u0111i\u1ec7n th\u1ebf ngu\u1ed3n và c\u1ee7a bóng \u0111èn.<\/p>","answer":"<p><strong data-end=\"1643\" data-start=\"1585\">\u0110áp án \u0111úng là: B. Bóng \u0111èn sai \u0111\u1ecbnh m\u1ee9c hi\u1ec7u \u0111i\u1ec7n th\u1ebf<\/strong><br data-end=\"1646\" data-start=\"1643\" \/><strong data-end=\"1661\" data-start=\"1646\">Gi\u1ea3i thích:<\/strong><\/p><p>\u0110èn 3V nh\u01b0ng m\u1eafc vào ngu\u1ed3n 6V → v\u01b0\u1ee3t m\u1ee9c \u0111i\u1ec7n áp → \u0111èn cháy.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-10 15:39:49","option_type":"txt","len":3}]}