{"id":20253,"date":"2024-04-15T05:50:26","date_gmt":"2024-04-15T05:50:26","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=20253"},"modified":"2024-04-15T05:50:26","modified_gmt":"2024-04-15T05:50:26","slug":"the-value-of-the-line-integral-intlimits_textc-left-2textxtexty2textdx-2textx2textydy-textdz-right-along-a-path-joining-the-origi","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-value-of-the-line-integral-intlimits_textc-left-2textxtexty2textdx-2textx2textydy-textdz-right-along-a-path-joining-the-origi\/","title":{"rendered":"The value of the line integral $$\\int\\limits_{\\text{c}} {\\left( {2{\\text{x}}{{\\text{y}}^2}{\\text{dx}} + 2{{\\text{x}}^2}{\\text{ydy}} + {\\text{dz}}} \\right)} $$ along a path joining the origin (0, 0, 0) and the point (1, 1, 1) is A. 0 B. 2 C. 4 D. 6"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;0&#8243; option2=&#8221;2&#8243; option3=&#8221;4&#8243; option4=&#8221;6&#8243; correct=&#8221;option1&#8243;]<!--more--><\/p>\n<p>The correct answer is $\\boxed{\\text{B) }2}$.<\/p>\n<p>The line integral is a way of calculating the work done by a force along a curve. In this case, the force is given by the vector field $\\mathbf{F}(x, y, z) = (2xy^2, 2x^2y, 0)$, and the curve is the line segment from the origin to the point $(1, 1, 1)$.<\/p>\n<p>To calculate the line integral, we first need to find a parametrization of the curve. A convenient parametrization is $x = t$, $y = t$, and $z = t$, for $0 \\leq t \\leq 1$. This parametrization tells us that the point $(x, y, z)$ is on the curve when $t = 0$, it is at the origin, and it is at the point $(1, 1, 1)$ when $t = 1$.<\/p>\n<p>Now we can calculate the line integral:<\/p>\n<p>$$\\int\\limits_{\\text{c}} {\\left( {2{\\text{x}}{{\\text{y}}^2}{\\text{dx}} + 2{{\\text{x}}^2}{\\text{ydy}} + {\\text{dz}}} \\right)} = \\int\\limits_0^1 {\\left( {2t^2} \\right)} dt = 2.$$<\/p>\n<p>Therefore, the value of the line integral is $\\boxed{\\text{B) }2}$.<\/p>\n<p>The other options are incorrect because they do not give the correct value of the line integral.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;0&#8243; option2=&#8221;2&#8243; option3=&#8221;4&#8243; option4=&#8221;6&#8243; correct=&#8221;option1&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[690],"tags":[],"class_list":["post-20253","post","type-post","status-publish","format-standard","hentry","category-calculus","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The value of the line integral $$\\int\\limits_{\\text{c}} {\\left( {2{\\text{x}}{{\\text{y}}^2}{\\text{dx}} + 2{{\\text{x}}^2}{\\text{ydy}} + {\\text{dz}}} \\right)} $$ along a path joining the origin (0, 0, 0) and the point (1, 1, 1) is A. 0 B. 2 C. 4 D. 6<\/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:\/\/exam.pscnotes.com\/mcq\/the-value-of-the-line-integral-intlimits_textc-left-2textxtexty2textdx-2textx2textydy-textdz-right-along-a-path-joining-the-origi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The value of the line integral $$\\int\\limits_{\\text{c}} {\\left( {2{\\text{x}}{{\\text{y}}^2}{\\text{dx}} + 2{{\\text{x}}^2}{\\text{ydy}} + {\\text{dz}}} \\right)} $$ along a path joining the origin (0, 0, 0) and the point (1, 1, 1) is A. 0 B. 2 C. 4 D. 6\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;0&#8243; 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