{"id":89306,"date":"2022-02-13T17:42:24","date_gmt":"2022-02-13T12:12:24","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=89306"},"modified":"2022-03-10T11:13:35","modified_gmt":"2022-03-10T05:43:35","slug":"to-measure-the-resistance-and-impedance-of-an-inductor-with-or-without-iron-core","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/study-material\/to-measure-the-resistance-and-impedance-of-an-inductor-with-or-without-iron-core\/","title":{"rendered":"To Measure the Resistance and Impedance of an Inductor With or Without Iron Core"},"content":{"rendered":"

To Measure the Resistance and Impedance of an Inductor With or Without Iron Core<\/strong><\/span><\/h2>\n

Aim<\/strong><\/span>
\nTo measure the resistance and impedance of an inductor with or without iron core.<\/p>\n

Apparatus and material <\/strong><\/span>
\nApparatus. A battery, a high resistance rheostat, D.C. ammeter, D.C. voltmeter, one way key, variable A.C. source (variac), A.C. ammeter, A.C. voltmeter, connecting wires.
\nMaterial. A high resistance and large number of turns coil wrapped on a hollow cylindrical asbestos core, a soft iron rod fitting into the asbestos core.<\/p>\n

Procedure<\/strong><\/span>
\nMeasurement of resistance:<\/strong>
\nMake circuit as shown in circuit diagram (figure (a) and figure (6)) and determine resistance applying Ohm\u2019s law.
\nMeasurement of impedance without iron core:<\/strong>
\nMake circuit as shown in circuit diagram (figure (c) and figure (d)). The variac (variable output A.C. source) is connected to A.C. Mains, A.C. ammeter and A.C. voltmeter are used for measuring A.C. current and voltage.
\nThe circuit will obey Ohm\u2019s law. The ratio of the voltmeter reading to the corresponding ammeter reading will give the impedance of the inductor (without iron core).
\nMeasurement of impedance with iron core:<\/strong>
\nNow insert the iron core inside the hollow cylindrical asbestos core of the inductor. Repeat the above steps to find the impedance of the inductor with iron core.<\/p>\n

Circuit diagram<\/strong><\/span>
\n\"to-measure-the-resistance-and-impedance-of-an-inductor-with-or-without-iron-coreto-measure-the-resistance-and-impedance-of-an-inductor-with-or-without-iron-core-1\"
\n\"to-measure-the-resistance-and-impedance-of-an-inductor-with-or-without-iron-coreto-measure-the-resistance-and-impedance-of-an-inductor-with-or-without-iron-core-2\"<\/p>\n

Observations<\/strong><\/span>
\nLeast count of D.C. ammeter = \u2026\u2026..
\nLeast count of A.C. ammeter = \u2026\u2026..
\nLeast count of D.C. voltmeter = \u2026\u2026..
\nLeast count of A.C. voltmeter = \u2026\u2026..
\nZero correction for D.C. ammeter = \u2026\u2026..
\nZero correction for A.C. ammeter = \u2026\u2026..
\nZero correction for D.C. voltmeter = \u2026\u2026..
\nZero correction for A.C. voltmeter = \u2026\u2026..<\/p>\n

    \n
  1. Measurement of Resistance
    \n\"to-measure-the-resistance-and-impedance-of-an-inductor-with-or-without-iron-coreto-measure-the-resistance-and-impedance-of-an-inductor-with-or-without-iron-core-3\"<\/li>\n
  2. Measurement of Impedance (without iron core)
    \nTable for A.C. Ammeter and A.C. Voltmeter Readings (Similar to above table\u2014write Z for R).<\/li>\n
  3. Measurement of Impedance (with iron core)
    \nTable for A.C. Ammeter and A.C. Voltmeter Readings (Similar to above table)<\/li>\n<\/ol>\n

    Conclusion <\/strong><\/span><\/p>\n

      \n
    1. The resistance of inductor coil is about same with and without soft iron core in flow of
      \nD.C. and is\u2026\u2026.. ohm.<\/li>\n
    2. Impedance of inductor with iron core is much more higher than without it for the flow
      \nof A.C. and are : \u2026\u2026\u2026 \u03a9 and\u2026\u2026\u2026. \u03a9.<\/li>\n<\/ol>\n

      Explanation <\/strong><\/span>
      \nThe inductor having inductance L without iron core has inductance \u03bcL with iron core, (\u03bc being magnetic (reactive permeability of iron which is about 1700).
      \n\"to-measure-the-resistance-and-impedance-of-an-inductor-with-or-without-iron-coreto-measure-the-resistance-and-impedance-of-an-inductor-with-or-without-iron-core-4\"<\/p>\n

       <\/p>\n","protected":false},"excerpt":{"rendered":"

      To Measure the Resistance and Impedance of an Inductor With or Without Iron Core Aim To measure the resistance and […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"Get To Measure the Resistance and Impedance of an Inductor With or Without Iron Core at infinity learn.","custom_permalink":"study-material\/to-measure-the-resistance-and-impedance-of-an-inductor-with-or-without-iron-core\/"},"categories":[116,21],"tags":[],"table_tags":[],"acf":[],"yoast_head":"\nTo Measure the Resistance and Impedance of an Inductor With or Without Iron Core - Infinity Learn by Sri Chaitanya<\/title>\n<meta name=\"description\" content=\"Get To Measure the Resistance and Impedance of an Inductor With or Without Iron Core at infinity learn.\" \/>\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\/study-material\/to-measure-the-resistance-and-impedance-of-an-inductor-with-or-without-iron-core\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"To Measure the Resistance and Impedance of an Inductor With or Without Iron Core - 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