{"id":88039,"date":"2025-06-01T07:00:14","date_gmt":"2025-06-01T07:00:14","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88039"},"modified":"2025-06-01T07:00:14","modified_gmt":"2025-06-01T07:00:14","slug":"which-one-of-the-following-is-the-best-shape-of-a-solid-metal-rod-to-f","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-best-shape-of-a-solid-metal-rod-to-f\/","title":{"rendered":"Which one of the following is the best shape of a solid metal rod to f"},"content":{"rendered":"

Which one of the following is the best shape of a solid metal rod to form the top end of a lightning conductor ?<\/p>\n

[amp_mcq option1=”Figure (a)” option2=”Figure (b)” option3=”Figure (c)” option4=”Figure (d)” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-1 – 2024<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe best shape for the top end of a lightning conductor is a sharp point (spike).
\n<\/section>\n
\nA sharp point concentrates the electric field lines from a charged cloud. This high electric field at the tip promotes corona discharge, which is a continuous leakage of charge from the conductor into the air. This discharge helps to neutralize the surrounding air and reduce the potential difference between the cloud and the ground, thereby reducing the likelihood of a direct lightning strike to the protected structure.
\n<\/section>\n
\nBlunt or rounded ends (like options b, c, and d) are less effective at concentrating the electric field and facilitating corona discharge compared to a sharp point. Modern lightning protection systems sometimes use other designs, but traditionally, the sharp point has been considered superior for this purpose.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is the best shape of a solid metal rod to form the top end of a lightning conductor ? [amp_mcq option1=”Figure (a)” option2=”Figure (b)” option3=”Figure (c)” option4=”Figure (d)” correct=”option1″] This question was previously asked in UPSC NDA-1 – 2024 Download PDFAttempt Online The best shape for the top end of … <\/p>\n

Detailed SolutionWhich one of the following is the best shape of a solid metal rod to f<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1093],"tags":[1103,1201,1128],"class_list":["post-88039","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1103","tag-electric-current","tag-physics","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is the best shape of a solid metal rod to f<\/title>\n<meta name=\"description\" content=\"The best shape for the top end of a lightning conductor is a sharp point (spike). A sharp point concentrates the electric field lines from a charged cloud. This high electric field at the tip promotes corona discharge, which is a continuous leakage of charge from the conductor into the air. This discharge helps to neutralize the surrounding air and reduce the potential difference between the cloud and the ground, thereby reducing the likelihood of a direct lightning strike to the protected structure.\" \/>\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\/which-one-of-the-following-is-the-best-shape-of-a-solid-metal-rod-to-f\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following is the best shape of a solid metal rod to f\" \/>\n<meta property=\"og:description\" content=\"The best shape for the top end of a lightning conductor is a sharp point (spike). A sharp point concentrates the electric field lines from a charged cloud. This high electric field at the tip promotes corona discharge, which is a continuous leakage of charge from the conductor into the air. This discharge helps to neutralize the surrounding air and reduce the potential difference between the cloud and the ground, thereby reducing the likelihood of a direct lightning strike to the protected structure.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-best-shape-of-a-solid-metal-rod-to-f\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T07:00:14+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Which one of the following is the best shape of a solid metal rod to f","description":"The best shape for the top end of a lightning conductor is a sharp point (spike). 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