{"id":47655,"date":"2024-04-15T22:29:53","date_gmt":"2024-04-15T22:29:53","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=47655"},"modified":"2024-04-15T22:29:53","modified_gmt":"2024-04-15T22:29:53","slug":"for-a-d-c-generator-when-the-number-of-poles-and-the-number-of-armature-conductors-is-fixed-then-which-winding-will-give-the-higher-e-m-f","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/for-a-d-c-generator-when-the-number-of-poles-and-the-number-of-armature-conductors-is-fixed-then-which-winding-will-give-the-higher-e-m-f\/","title":{"rendered":"For a D.C. generator when the number of poles and the number of armature conductors is fixed, then which winding will give the higher e.m.f.?"},"content":{"rendered":"<p>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6a97da8695e48\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"true\">\r\n                    Lap winding                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Wave winding                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    generator when the number of poles and the number of armature conductors is fixed, then which winding will give the higher e.m.f.? A. Lap winding B. Wave winding C. Either of (A) and (B) above                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    Depends on other features of design                <\/div>\r\n                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--more--><\/p>\n<p>The correct answer is: A. Lap winding<\/p>\n<p>A lap winding is a type of winding used in DC generators. It is characterized by having the armature conductors connected in parallel between the commutator segments. This type of winding has the advantage of producing a higher e.m.f. than a wave winding.<\/p>\n<p>A wave winding is a type of winding used in DC generators. It is characterized by having the armature conductors connected in series between the commutator segments. This type of winding has the advantage of being less expensive to manufacture than a lap winding.<\/p>\n<p>The e.m.f. produced by a DC generator is given by the following equation:<\/p>\n<p>$E = \\frac{PZN}{A}$<\/p>\n<p>where:<\/p>\n<ul>\n<li>$E$ is the e.m.f. in volts<\/li>\n<li>$P$ is the number of poles<\/li>\n<li>$Z$ is the number of armature conductors<\/li>\n<li>$A$ is the number of parallel paths<\/li>\n<\/ul>\n<p>In a lap winding, there are as many parallel paths as there are armature conductors. In a wave winding, there are only two parallel paths. Therefore, a lap winding will always produce a higher e.m.f. than a wave winding, given the same number of poles and armature conductors.<\/p>\n<p>The other options are incorrect because:<\/p>\n<ul>\n<li>Option B is incorrect because a wave winding will always <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\">\r\n                    <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" class=\"telegram-channel-button\">\r\n            <span class=\"telegram-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 496 512\">\r\n                    <path fill=\"white\" d=\"M248,8C111,8,0,119,0,256s111,248,248,248s248-111,248-248S385,8,248,8z M362,177L320,367c-3,14-10,18-20,14l-56-41l-27,26 c-3,3-5,5-10,5l4-63L323,196c5-5-1-7-8-3l-98,62l-42-13c-9-3-10-9,2-14l162-63C351,160,365,164,362,177z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Join Our Telegram Channel\r\n        <\/a>\r\n    <\/div> 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> produce a lower e.m.f. than a lap winding, given the same number of poles and armature conductors.<\/li>\n<li>Option C is incorrect because both lap and wave windings can produce a high e.m.f., depending on the number of poles and armature conductors.<\/li>\n<li>Option D is incorrect because the e.m.f. produced by a DC generator is only dependent on the number of poles, armature conductors, and the number of parallel paths. Other features of design, such as the type of insulation used, do not affect the e.m.f.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Subscribe on YouTube<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[742],"tags":[],"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>For a D.C. generator when the number of poles and the number of armature conductors is fixed, then which winding will give the higher e.m.f.?<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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