{"id":343937,"date":"2023-01-06T13:41:50","date_gmt":"2023-01-06T08:11:50","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/question\/two-lamps-one-rated-100-w-220-v-and-the-other-60-w-220-v-are-connected-in-parallel-to-electric-mains-supply-the-current-drawn-by-the-two-bulbs-is-1-a\/"},"modified":"2025-06-26T17:47:42","modified_gmt":"2025-06-26T12:17:42","slug":"two-lamps-one-rated-100-w-220-v-and-the-other-60-w-220-v-are-connected-in-parallel-to-electric-mains-supply-the-current-drawn-by-the-two-bulbs-is-1-a","status":"publish","type":"questions","link":"https:\/\/infinitylearn.com\/surge\/question\/physics\/two-lamps-one-rated-100w-220v-and-the-other-60w-220v\/","title":{"rendered":"Two lamps, one rated 100\u00a0W, 220\u00a0V, and the other 60\u00a0W, 220\u00a0V, are connected in parallel to electric mains supply, the current drawn by the two bulbs is [[1]] A."},"content":{"rendered":"","protected":false},"author":1,"template":"","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"Two lamps, one rated 100\u00a0W, 220\u00a0V, and the other 60\u00a0W, 220\u00a0V, are connected in parallel to electric mains supply, the current drawn by the two bulbs is [[1]] A.","custom_permalink":"question\/physics\/two-lamps-one-rated-100w-220v-and-the-other-60w-220v\/"},"categories":[],"acf":{"question":"

Two lamps, one rated <\/span>100<\/mn> <\/mi>W<\/mi><\/math>, <\/span>220<\/mn> <\/mi>V<\/mi><\/math>, and the other <\/span>60<\/mn> <\/mi>W<\/mi><\/math>, <\/span>220<\/mn> <\/mi>V<\/mi><\/math>, are connected in parallel to electric mains supply, the current drawn by the two bulbs is [[1]] <\/span>A<\/mi><\/math>.<\/span><\/p>

<\/p>

<\/p><\/spanstyle=\"font-family:'timesnewroman';-aw-import:ignore\"><\/pstyle=\"margin-top:0pt;margin-bottom:0pt;line-height:115%;font-size:12pt\"><\/spanstyle=\"font-family:'timesnewroman';-aw-import:ignore\"><\/pstyle=\"margin-top:0pt;margin-bottom:0pt;line-height:115%;font-size:12pt\">","options":null,"solution":"When two lamps, one rated <\/span>100<\/mn> <\/mi>W<\/mi><\/math>, <\/span>220<\/mn> <\/mi>V<\/mi><\/math>, and the other <\/span>60<\/mn> <\/mi>W<\/mi><\/math>, <\/span>220<\/mn> <\/mi>V<\/mi><\/math>, are connected in parallel to electric mains supply, the current drawn by the two bulbs is <\/span>0<\/mn>.<\/mo>72<\/mn> <\/mi>A<\/mi><\/math>.<\/span>
It is given that two bulbs of ratings <\/span>100<\/mn> <\/mi>W<\/mi><\/math>, <\/span>220<\/mn> <\/mi>V<\/mi><\/math> and <\/span>60<\/mn> <\/mi>W<\/mi><\/math>, <\/span>220<\/mn> <\/mi>V<\/mi><\/math> are connected in parallel combination with the mains.<\/span>
Let the bulb with Power <\/span>P<\/mi><\/mrow><\/mfenced>=<\/mo>100<\/mn> <\/mi>W<\/mi><\/math> and potential difference <\/span>V<\/mi>=<\/mo>220<\/mn> <\/mi>V<\/mi><\/math> be Bulb <\/span>1<\/mn><\/math>.<\/span>
Let the bulb with Power (<\/span>P<\/mi>)<\/mo>=<\/mo>60<\/mn> <\/mi>W<\/mi><\/math>and potential difference <\/span>V<\/mi>=<\/mo>220<\/mn> <\/mi>V<\/mi><\/math> be Bulb <\/span>2<\/mn><\/math>.<\/span>
It is known that the power of the component is given by the relation<\/span>
      <\/span>P<\/mi>=<\/mo>VI<\/mi><\/math>
It can be written as<\/span>
      <\/span>I<\/mi>=<\/mo>P<\/mi><\/mrow>V<\/mi><\/mrow><\/mfrac><\/math>
Where <\/span>I<\/mi>,<\/mo> <\/mi>P<\/mi><\/math> and <\/span>V<\/mi><\/math> are the current, power and potential difference respectively.<\/span>
Therefore, the current drawn by bulb <\/span>1<\/mn><\/math> is <\/span>
\u21d2<\/mo>I<\/mi><\/mrow>1<\/mn><\/mrow><\/msub>=<\/mo>100<\/mn><\/mrow>220<\/mn><\/mrow><\/mfrac><\/math>
\u21d2<\/mo>I<\/mi><\/mrow>1<\/mn><\/mrow><\/msub>=<\/mo>5<\/mn><\/mrow>11<\/mn><\/mrow><\/mfrac> <\/mi>A<\/mi><\/math>
Similarly, the current drawn by bulb <\/span>2<\/mn><\/math> is <\/span>
    <\/span>I<\/mi><\/mrow>2<\/mn><\/mrow><\/msub>=<\/mo>60<\/mn><\/mrow>220<\/mn><\/mrow><\/mfrac><\/math>
\u21d2<\/mo>I<\/mi><\/mrow>2<\/mn><\/mrow><\/msub>=<\/mo>3<\/mn><\/mrow>11<\/mn><\/mrow><\/mfrac> <\/mi>A<\/mi><\/math>
Therefore, the total current drawn by the two bulbs is<\/span>
     <\/span>I<\/mi><\/mrow>1<\/mn><\/mrow><\/msub>=<\/mo>I<\/mi><\/mrow>1<\/mn><\/mrow><\/msub>+<\/mo>I<\/mi><\/mrow>2<\/mn><\/mrow><\/msub><\/math>
\u21d2<\/mo>I<\/mi>=<\/mo>5<\/mn><\/mrow>11<\/mn><\/mrow><\/mfrac>+<\/mo>3<\/mn><\/mrow>11<\/mn><\/mrow><\/mfrac><\/math>
\u21d2<\/mo>I<\/mi>=<\/mo>8<\/mn><\/mrow>11<\/mn><\/mrow><\/mfrac><\/math>
\u21d2<\/mo>I<\/mi>=<\/mo>0<\/mn>.<\/mo>72<\/mn> <\/mi>A<\/mi><\/math>
Hence, the current drawn by two bulbs is <\/span>0<\/mn>.<\/mo>72<\/mn> <\/mi>A<\/mi><\/math>.<\/span>
 <\/span> <\/span>","subject":""},"yoast_head":"\nTwo lamps, one rated 100\u00a0W, 220\u00a0V, and the other 60\u00a0W, 220\u00a0V, are connected in parallel to electric mains supply, the current drawn by the two bulbs is [[1]] A. - Infinity Learn by Sri Chaitanya<\/title>\n<meta name=\"description\" content=\"Two lamps, one rated 100\u00a0W, 220\u00a0V, and the other 60\u00a0W, 220\u00a0V, are connected in parallel to electric mains supply, the current drawn by the two bulbs is [[1]] A.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/infinitylearn.com\/surge\/question\/physics\/two-lamps-one-rated-100w-220v-and-the-other-60w-220v\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Two lamps, one rated 100\u00a0W, 220\u00a0V, and the other 60\u00a0W, 220\u00a0V, are connected in parallel to electric mains supply, the current drawn by the two bulbs is [[1]] A. - Infinity Learn by Sri Chaitanya\" \/>\n<meta property=\"og:description\" content=\"Two lamps, one rated 100\u00a0W, 220\u00a0V, and the other 60\u00a0W, 220\u00a0V, are connected in parallel to electric mains supply, the current drawn by the two bulbs is [[1]] A.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/infinitylearn.com\/surge\/question\/physics\/two-lamps-one-rated-100w-220v-and-the-other-60w-220v\/\" \/>\n<meta property=\"og:site_name\" content=\"Infinity Learn by Sri Chaitanya\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/InfinityLearn.SriChaitanya\/\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-26T12:17:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2025\/04\/infinitylearn.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1008\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@InfinityLearn_\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Two lamps, one rated 100\u00a0W, 220\u00a0V, and the other 60\u00a0W, 220\u00a0V, are connected in parallel to electric mains supply, the current drawn by the two bulbs is [[1]] A. - Infinity Learn by Sri Chaitanya","description":"Two lamps, one rated 100\u00a0W, 220\u00a0V, and the other 60\u00a0W, 220\u00a0V, are connected in parallel to electric mains supply, the current drawn by the two bulbs is [[1]] A.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/infinitylearn.com\/surge\/question\/physics\/two-lamps-one-rated-100w-220v-and-the-other-60w-220v\/","og_locale":"en_US","og_type":"article","og_title":"Two lamps, one rated 100\u00a0W, 220\u00a0V, and the other 60\u00a0W, 220\u00a0V, are connected in parallel to electric mains supply, the current drawn by the two bulbs is [[1]] A. - Infinity Learn by Sri Chaitanya","og_description":"Two lamps, one rated 100\u00a0W, 220\u00a0V, and the other 60\u00a0W, 220\u00a0V, are connected in parallel to electric mains supply, the current drawn by the two bulbs is [[1]] A.","og_url":"https:\/\/infinitylearn.com\/surge\/question\/physics\/two-lamps-one-rated-100w-220v-and-the-other-60w-220v\/","og_site_name":"Infinity Learn by Sri Chaitanya","article_publisher":"https:\/\/www.facebook.com\/InfinityLearn.SriChaitanya\/","article_modified_time":"2025-06-26T12:17:42+00:00","og_image":[{"width":1920,"height":1008,"url":"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2025\/04\/infinitylearn.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_site":"@InfinityLearn_","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Organization","@id":"https:\/\/infinitylearn.com\/surge\/#organization","name":"Infinity Learn","url":"https:\/\/infinitylearn.com\/surge\/","sameAs":["https:\/\/www.facebook.com\/InfinityLearn.SriChaitanya\/","https:\/\/www.instagram.com\/infinitylearn_by_srichaitanya\/","https:\/\/www.linkedin.com\/company\/infinity-learn-by-sri-chaitanya\/","https:\/\/www.youtube.com\/c\/InfinityLearnEdu","https:\/\/twitter.com\/InfinityLearn_"],"logo":{"@type":"ImageObject","@id":"https:\/\/infinitylearn.com\/surge\/#logo","inLanguage":"en-US","url":"","contentUrl":"","caption":"Infinity Learn"},"image":{"@id":"https:\/\/infinitylearn.com\/surge\/#logo"}},{"@type":"WebSite","@id":"https:\/\/infinitylearn.com\/surge\/#website","url":"https:\/\/infinitylearn.com\/surge\/","name":"Infinity Learn by Sri Chaitanya","description":"Surge","publisher":{"@id":"https:\/\/infinitylearn.com\/surge\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/infinitylearn.com\/surge\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/infinitylearn.com\/surge\/question\/physics\/two-lamps-one-rated-100w-220v-and-the-other-60w-220v\/#webpage","url":"https:\/\/infinitylearn.com\/surge\/question\/physics\/two-lamps-one-rated-100w-220v-and-the-other-60w-220v\/","name":"Two lamps, one rated 100\u00a0W, 220\u00a0V, and the other 60\u00a0W, 220\u00a0V, are connected in parallel to electric mains supply, the current drawn by the two bulbs is [[1]] A. - Infinity Learn by Sri Chaitanya","isPartOf":{"@id":"https:\/\/infinitylearn.com\/surge\/#website"},"datePublished":"2023-01-06T08:11:50+00:00","dateModified":"2025-06-26T12:17:42+00:00","description":"Two lamps, one rated 100\u00a0W, 220\u00a0V, and the other 60\u00a0W, 220\u00a0V, are connected in parallel to electric mains supply, the current drawn by the two bulbs is [[1]] A.","breadcrumb":{"@id":"https:\/\/infinitylearn.com\/surge\/question\/physics\/two-lamps-one-rated-100w-220v-and-the-other-60w-220v\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/infinitylearn.com\/surge\/question\/physics\/two-lamps-one-rated-100w-220v-and-the-other-60w-220v\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/infinitylearn.com\/surge\/question\/physics\/two-lamps-one-rated-100w-220v-and-the-other-60w-220v\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/infinitylearn.com\/surge\/"},{"@type":"ListItem","position":2,"name":"Two lamps, one rated 100\u00a0W, 220\u00a0V, and the other 60\u00a0W, 220\u00a0V, are connected in parallel to electric mains supply, the current drawn by the two bulbs is [[1]] A."}]}]}},"_links":{"self":[{"href":"https:\/\/infinitylearn.com\/surge\/wp-json\/wp\/v2\/questions\/343937"}],"collection":[{"href":"https:\/\/infinitylearn.com\/surge\/wp-json\/wp\/v2\/questions"}],"about":[{"href":"https:\/\/infinitylearn.com\/surge\/wp-json\/wp\/v2\/types\/questions"}],"author":[{"embeddable":true,"href":"https:\/\/infinitylearn.com\/surge\/wp-json\/wp\/v2\/users\/1"}],"wp:attachment":[{"href":"https:\/\/infinitylearn.com\/surge\/wp-json\/wp\/v2\/media?parent=343937"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/infinitylearn.com\/surge\/wp-json\/wp\/v2\/categories?post=343937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}