tag:blogger.com,1999:blog-5895376483669856676.post2723110556700564686..comments2024-01-24T15:06:16.099+05:30Comments on CBSE Papers, Questions, Answers, MCQ ...: CBSE Class 7 Science - CH14 - Electric Current and its EffectsUnknownnoreply@blogger.comBlogger50125tag:blogger.com,1999:blog-5895376483669856676.post-73103679599857168782018-02-27T23:44:32.301+05:302018-02-27T23:44:32.301+05:30Construction and Working of an Electric Bell
Circ...Construction and Working of an Electric Bell<br /><br />Circuit<br /><br /> An electric bell consists of an iron core, on which is wound a wire as a coil.<br /> One end of the coil is connected to one terminal of a battery, and the other end to a steel rod that acts like a spring for the hammer touching the screw contact.<br /> The other terminal of the battery is connected to the screw Nusrat Khanhttps://www.blogger.com/profile/08698488621409747490noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-70386852513142808522018-02-27T23:08:37.944+05:302018-02-27T23:08:37.944+05:30
The most widely used form is the school bell, w... <br /><br />The most widely used form is the school bell, which produces a continuous sound when current is applied. The bell or gong (B), which is often in the shape of a cup or half-sphere, is struck by a spring-loaded arm (A) with a metal ball on the end called a hammer, actuated by an electromagnet (E). In its rest position the hammer is held away from the bell a short distance by its Nusrat Khanhttps://www.blogger.com/profile/08698488621409747490noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-66233059656456657822018-02-27T23:05:58.300+05:302018-02-27T23:05:58.300+05:30This comment has been removed by the author.Nusrat Khanhttps://www.blogger.com/profile/08698488621409747490noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-74913505243268930742018-02-26T16:01:33.773+05:302018-02-26T16:01:33.773+05:30how does an electric bell works?
it would be bette...how does an electric bell works?<br />it would be better if i get answer till 27-2-2018<br />Anonymoushttps://www.blogger.com/profile/13476432847680860521noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-5322574264054078952017-12-18T20:21:12.125+05:302017-12-18T20:21:12.125+05:30supper
supper<br />Anonymoushttps://www.blogger.com/profile/00242469720482509656noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-78350893569546208532017-03-14T22:21:03.403+05:302017-03-14T22:21:03.403+05:30R u serious 🤔🤔😑😑R u serious 🤔🤔😑😑Drithihttps://www.blogger.com/profile/16060460551009799506noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-1768653957295733182017-03-14T22:18:47.209+05:302017-03-14T22:18:47.209+05:30The fuse wire is made up of lead and tin , i think...The fuse wire is made up of lead and tin , i think so any 1 knows wat it is made up of ? <br /><br />If yes pls answermDrithihttps://www.blogger.com/profile/16060460551009799506noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-6138767501892658892017-02-26T00:34:32.603+05:302017-02-26T00:34:32.603+05:30Very helpful,thank you
Very helpful,thank you<br />Anil Varghesehttps://www.blogger.com/profile/01141871120114985841noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-19354584495642858392017-02-22T12:31:19.954+05:302017-02-22T12:31:19.954+05:30Lul ba
.......Lul ba<br />.......HEALTH AND WELLNESS CLUBhttps://www.blogger.com/profile/12895738196974467263noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-79609337277362828712017-02-22T12:24:59.493+05:302017-02-22T12:24:59.493+05:30Lul ba
.......Lul ba<br />.......HEALTH AND WELLNESS CLUBhttps://www.blogger.com/profile/12895738196974467263noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-46104432360572232562017-02-22T12:16:28.977+05:302017-02-22T12:16:28.977+05:30 Fuses are devices that safeguard our electrical a... Fuses are devices that safeguard our electrical appliances, wiring. They are made up of special material which melt quickly and break when large electric currents are passed through them.<br />If the electrician does not use proper fuse wire, instead he uses any ordinary electric wire as fuse, it increases the risk of overheating of wires due to flow of excessive current. It may lead to short HEALTH AND WELLNESS CLUBhttps://www.blogger.com/profile/12895738196974467263noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-30693170530286105972017-02-12T08:58:29.185+05:302017-02-12T08:58:29.185+05:30This comment has been removed by the author.lourahttps://www.blogger.com/profile/00563619039668863158noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-32193655349380132312017-01-19T19:09:37.861+05:302017-01-19T19:09:37.861+05:30Exellent work. It helps me very much. Because of t...Exellent work. It helps me very much. Because of this , i got 100 out of 100 in final exams. Thank u for helping meAnonymoushttps://www.blogger.com/profile/15968450989610240827noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-43963035805637984492017-01-13T18:58:05.662+05:302017-01-13T18:58:05.662+05:30Also by hard questions I mean like a whole page of...Also by hard questions I mean like a whole page of themAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-88049250331764624702017-01-13T18:57:28.747+05:302017-01-13T18:57:28.747+05:30Its good but I need more hard questionsIts good but I need more hard questionsAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-38675303181184733212017-01-03T20:27:11.060+05:302017-01-03T20:27:11.060+05:30nice but boring
nice but boring<br />Pummy Singhhttps://www.blogger.com/profile/10752572127374622403noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-10739012641987563672017-01-03T20:26:39.349+05:302017-01-03T20:26:39.349+05:30nice but boring
nice but boring<br />Pummy Singhhttps://www.blogger.com/profile/10752572127374622403noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-35725807556278013002016-12-11T20:40:33.459+05:302016-12-11T20:40:33.459+05:30ThanksThanksAnonymoushttps://www.blogger.com/profile/16281455848418886213noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-78007051934591770802016-11-13T15:26:06.161+05:302016-11-13T15:26:06.161+05:30really nice
really nice<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-24724602303349564512016-10-12T21:28:12.526+05:302016-10-12T21:28:12.526+05:30really knowledgeable very much thanks to them ...
...really knowledgeable very much thanks to them ...<br />Anonymoushttps://www.blogger.com/profile/01582181814512827489noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-26784233502858282262016-09-22T13:16:49.953+05:302016-09-22T13:16:49.953+05:30it was good enough
it was good enough <br />Anonymoushttps://www.blogger.com/profile/17351170945417743058noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-53151948515204973612016-09-22T13:13:23.558+05:302016-09-22T13:13:23.558+05:30it was good enough
it was good enough <br />Anonymoushttps://www.blogger.com/profile/17351170945417743058noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-25079906509159053802016-07-21T21:15:57.151+05:302016-07-21T21:15:57.151+05:30it was very useful informative and nice. thank uit was very useful informative and nice. thank uAnonymoushttps://www.blogger.com/profile/04197916496149529961noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-20549478707264302042016-03-05T15:36:25.071+05:302016-03-05T15:36:25.071+05:30Have changes am
Have changes am <br />Anonymoushttps://www.blogger.com/profile/07101742955063954697noreply@blogger.comtag:blogger.com,1999:blog-5895376483669856676.post-75175723578778828522016-03-05T15:34:50.209+05:302016-03-05T15:34:50.209+05:30Have changes am
Have changes am <br />Anonymoushttps://www.blogger.com/profile/07101742955063954697noreply@blogger.com