{"id":34811,"date":"2016-11-29T11:36:32","date_gmt":"2016-11-29T06:06:32","guid":{"rendered":"https:\/\/www.cbselabs.com\/?p=34811"},"modified":"2021-09-18T15:26:34","modified_gmt":"2021-09-18T09:56:34","slug":"to-assemble-a-household-circuit-comprising-three-bulbs-three-onoff-switches-a-fuse-and-a-power-source","status":"publish","type":"post","link":"https:\/\/www.cbselabs.com\/to-assemble-a-household-circuit-comprising-three-bulbs-three-onoff-switches-a-fuse-and-a-power-source\/","title":{"rendered":"To Assemble a Household Circuit Comprising Three Bulbs, Three (on\/off) Switches, a Fuse and a Power Source"},"content":{"rendered":"

To Assemble a Household Circuit Comprising Three Bulbs, Three (on\/off) Switches, a Fuse and a Power Source<\/strong><\/span><\/h2>\n

Aim<\/strong><\/span>
\nTo assemble a household circuit comprising three bulbs, three (on\/off) switches,a fuse and a power source.<\/p>\n

Apparatus and material<\/strong><\/span>
\nApparatus:<\/strong> No apparatus required in assembling a circuit.
\nMaterial:<\/strong> Three bulbs (6 V, 1W) each, fuse of 0.6 A, main switch a power supply (battery . eliminator), three (on\/off) switches flexible connecting wire with red and black plastic covering,a fuse wire.
\nSupplementary:<\/strong>\u00a0Main electric board with a two-pin socket and main switch.<\/p>\n

Theory<\/strong><\/span>
\nElectricity supplied to us for domestic purposes is 220 V A.C. and 50 Hz. The household circuit, all appliances are connected in \u201cparallel\u201d with mains. The switches are connected in series with each appliances in live wire. 5 A switches are required for normal appliances like, bulbs, fluorescent tubes fans etc. 15 A sockets and switches are required for heavy load appliances ‘ like, refrigerator, air conditioner, geyser, hot plates etc. All appliances must have three wires called live, neutral and the earth. Total power consumption ‘P’ at a time
\nP = P1<\/sub> + P2<\/sub> + P3<\/sub> +………..
\nwhere P1<\/sub>, P2<\/sub>, P3<\/sub>\u00a0are the powers drawn by appliances.
\nTo protect the appliances from damage when unduly high currents are drawn fuse of \u00a0little higher rating, 10 to 20% higher than the current normally drawn by all appliances. For further safety, a suitable value MAINS FUSE like rating 32 A is connected in series with supply source.<\/p>\n

Diagram
\n<\/strong><\/span>
\n\"to-assemble-a-household-circuit-comprising-three-bulbs-three-onoff-switches-a-fuse-and-a-power-source-1\"<\/p>\n

Procedure
\n<\/strong><\/span><\/p>\n

    \n
  1. Connect the bulbs B1<\/sub>, B2<\/sub> and B3<\/sub> in series with switches S1<\/sub>, S2<\/sub> and S3<\/sub> respectively and connect each set of B-S in parallel with each other.<\/li>\n
  2. Connect main supply to a step-down transformer (battery eliminator) to get required voltage from 0 to 10 V (0, 2, 4, 6, 8 and 10 V).<\/li>\n
  3. Connect the mains fuse M.S. in series with the power supply (battery eliminator).<\/li>\n
  4. Connect an A.C. ammeter in series with the B-S set.<\/li>\n
  5. Connect one end of power supply to one end of B-S set.<\/li>\n
  6. Check the circuit one again to ensure that household circuit is complete.<\/li>\n
  7. Gradually increase the current to 0.75 A, the fuse must bum off at about 0.6 A.<\/li>\n<\/ol>\n

    Physics Lab Manual<\/a>NCERT Solutions <\/a>Class 12 Physics Sample Papers<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    To Assemble a Household Circuit Comprising Three Bulbs, Three (on\/off) Switches, a Fuse and a Power Source Aim To assemble a household circuit comprising three bulbs, three (on\/off) switches,a fuse and a power source. Apparatus and material Apparatus: No apparatus required in assembling a circuit. Material: Three bulbs (6 V, 1W) each, fuse of 0.6 …<\/p>\n","protected":false},"author":27,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[2],"tags":[],"yoast_head":"\nTo Assemble a Household Circuit Comprising Three Bulbs, Three (on\/off) Switches, a Fuse and a Power Source - CBSE Labs<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.cbselabs.com\/to-assemble-a-household-circuit-comprising-three-bulbs-three-onoff-switches-a-fuse-and-a-power-source\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"To Assemble a Household Circuit Comprising Three Bulbs, Three (on\/off) Switches, a Fuse and a Power Source\" \/>\n<meta property=\"og:description\" content=\"To Assemble a Household Circuit Comprising Three Bulbs, Three (on\/off) Switches, a Fuse and a Power Source Aim To assemble a household circuit comprising three bulbs, three (on\/off) switches,a fuse and a power source. 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