{"common":{"save":0,"post_id":"9185","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"9687","post_id":"9185","mon_id":"1159539","chapter_id":"1159897","question":"<p>Dòng \u0111i\u1ec7n có th\u1ec3 làm nóng dây d\u1eabn là do tác d\u1ee5ng nào sau \u0111ây?<\/p>","options":["A. Tác d\u1ee5ng nhi\u1ec7t","B. Tác d\u1ee5ng t\u1eeb","C. Tác d\u1ee5ng hóa h\u1ecdc","D. Tác d\u1ee5ng sinh lý"],"correct":"1","level":"1","hint":"<p>SGK \u0111\u1ec1 c\u1eadp các tác d\u1ee5ng c\u1ee7a dòng \u0111i\u1ec7n, trong \u0111ó có tác d\u1ee5ng làm nóng dây d\u1eabn.<\/p>","answer":"<p><strong data-end=\"498\" data-start=\"464\">\u0110áp án \u0111úng là: A. Tác d\u1ee5ng nhi\u1ec7t<\/strong><br data-end=\"501\" data-start=\"498\" \/><strong data-end=\"516\" data-start=\"501\">Gi\u1ea3i thích:<\/strong><\/p><p>Dòng \u0111i\u1ec7n khi ch\u1ea1y qua dây d\u1eabn làm dây nóng lên, \u0111ó là tác d\u1ee5ng nhi\u1ec7t c\u1ee7a dòng \u0111i\u1ec7n.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-05 16:27:41","option_type":"txt","len":2},{"id":"9688","post_id":"9185","mon_id":"1159539","chapter_id":"1159897","question":"<p>Trong các thi\u1ebft b\u1ecb sau, thi\u1ebft b\u1ecb nào ho\u1ea1t \u0111\u1ed9ng ch\u1ee7 y\u1ebfu nh\u1edd <strong data-end=\"696\" data-start=\"678\">tác d\u1ee5ng nhi\u1ec7t<\/strong> c\u1ee7a dòng \u0111i\u1ec7n?<\/p>","options":["A. Qu\u1ea1t \u0111i\u1ec7n","B. Bóng \u0111èn s\u1ee3i \u0111\u1ed1t","C. Chuông \u0111i\u1ec7n","D. Nam châm \u0111i\u1ec7n"],"correct":"2","level":"1","hint":"<p>Nh\u1eadn bi\u1ebft thi\u1ebft b\u1ecb s\u1eed d\u1ee5ng nhi\u1ec7t sinh ra t\u1eeb dòng \u0111i\u1ec7n.<\/p>","answer":"<p><strong data-end=\"890\" data-start=\"854\">\u0110áp án \u0111úng là: B. Bóng \u0111èn s\u1ee3i \u0111\u1ed1t<\/strong><br data-end=\"893\" data-start=\"890\" \/><strong data-end=\"908\" data-start=\"893\">Gi\u1ea3i thích:<\/strong><\/p><p>Bóng \u0111èn s\u1ee3i \u0111\u1ed1t phát sáng là do dây tóc b\u1ecb \u0111\u1ed1t nóng b\u1edfi dòng \u0111i\u1ec7n.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-05 16:28:44","option_type":"txt","len":2},{"id":"9689","post_id":"9185","mon_id":"1159539","chapter_id":"1159897","question":"<p>Dòng \u0111i\u1ec7n có th\u1ec3 làm l\u1ec7ch kim nam châm là do tác d\u1ee5ng nào?<\/p>","options":["A. Tác d\u1ee5ng hóa h\u1ecdc","B. Tác d\u1ee5ng t\u1eeb","C. Tác d\u1ee5ng sinh lý","D. Tác d\u1ee5ng c\u01a1 h\u1ecdc"],"correct":"2","level":"1","hint":"<p>Hi\u1ec7n t\u01b0\u1ee3ng dòng \u0111i\u1ec7n sinh ra t\u1eeb tr\u01b0\u1eddng.<\/p>","answer":"<p><strong data-end=\"1220\" data-start=\"1189\">\u0110áp án \u0111úng là: B. Tác d\u1ee5ng t\u1eeb<\/strong><br data-end=\"1223\" data-start=\"1220\" \/><strong data-end=\"1238\" data-start=\"1223\">Gi\u1ea3i thích:<\/strong><\/p><p>Khi dòng \u0111i\u1ec7n ch\u1ea1y qua, nó t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng có th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kim nam châm.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"0","date":"2025-05-05 16:29:40","option_type":"txt","len":2}]}
