{"id":18887,"date":"2024-04-15T05:32:07","date_gmt":"2024-04-15T05:32:07","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=18887"},"modified":"2024-04-15T05:32:07","modified_gmt":"2024-04-15T05:32:07","slug":"resistor-ratio-design-is-used-in-linear-ics-because-a-ratios-increase-input-resistance-b-ratios-increase-amplifier-gain-c-precise-resistor-values-are-not-possible-with-ic-processes-d-all-of-the-ab","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/resistor-ratio-design-is-used-in-linear-ics-because-a-ratios-increase-input-resistance-b-ratios-increase-amplifier-gain-c-precise-resistor-values-are-not-possible-with-ic-processes-d-all-of-the-ab\/","title":{"rendered":"Resistor Ratio design is used in linear ICs because A. Ratios increase input resistance B. Ratios increase amplifier gain C. Precise resistor values are not possible with IC processes D. All of the above E. None of the above"},"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_6abee0f8557a0\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    Ratios increase input resistance                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Ratios increase amplifier gain                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    Precise resistor values are not possible with IC processes                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"true\">\r\n                    All of the above E. None of the above                <\/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: <strong>D. All of the above<\/strong><\/p>\n<p>Resistors are used in linear ICs to create voltage dividers, which are used to amplify or attenuate signals. The ratio of the two resistors in a voltage divider determines the gain of the amplifier. In order to achieve a desired gain, it is necessary to use resistors with precise values. However, it is not possible to manufacture resistors with perfectly precise values using IC processes. Therefore, resistor ratio design is used to create voltage dividers with the desired gain, even though the individual resistors may not have perfectly precise values.<\/p>\n<p>Here is a more detailed explanation of each option:<\/p>\n<ul>\n<li><strong>A. Ratios increase input resistance<\/strong><\/li>\n<\/ul>\n<p>The input resistance of an amplifier is the amount of resistance that it presents to <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 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> the signal source. A higher <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> input resistance means that the amplifier draws less current from the signal source, which can improve the signal-to-noise ratio. The input resistance of an amplifier is determined by the ratio of the two resistors in the voltage divider that forms the input stage of the amplifier.<\/p>\n<ul>\n<li><strong>B. Ratios increase amplifier gain<\/strong><\/li>\n<\/ul>\n<p>The gain of an amplifier is the amount by which it amplifies the input signal. A higher gain means that the output signal is larger than the input signal. The gain of an amplifier is determined by the ratio of the two resistors in the voltage divider that forms the input stage of the amplifier.<\/p>\n<ul>\n<li><strong>C. Precise resistor values are not possible with IC processes<\/strong><\/li>\n<\/ul>\n<p>It is not possible to manufacture resistors with perfectly precise values using IC processes. This is because the manufacturing process introduces variations in the resistance of the resistors. These variations can be caused by factors such as the temperature of the wafer during manufacturing, the amount of dopant that is added to the wafer, and the thickness of the oxide layer on the wafer.<\/p>\n<p>Therefore, resistor ratio design is used to create voltage dividers with the desired gain, even though the individual resistors may not have perfectly precise values. By carefully choosing the ratio of the two resistors, it is possible to create a voltage divider with the desired gain, even though the individual resistors may have variations in their resistance.<\/p>\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":[681],"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>Resistor Ratio design is used in linear ICs because A. Ratios increase input resistance B. Ratios increase amplifier gain C. Precise resistor values are not possible with IC processes D. All of the above E. 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