{"id":11427,"date":"2023-04-17T10:00:15","date_gmt":"2023-04-17T04:30:15","guid":{"rendered":"https:\/\/www.aplustopper.com\/?p=11427"},"modified":"2023-04-18T10:02:56","modified_gmt":"2023-04-18T04:32:56","slug":"electromagnet-temporary-permanent-magnet","status":"publish","type":"post","link":"https:\/\/www.aplustopper.com\/electromagnet-temporary-permanent-magnet\/","title":{"rendered":"Is an electromagnet a temporary or a permanent magnet?"},"content":{"rendered":"<h2><strong>Is an electromagnet a temporary or a permanent magnet?<br \/>\n<\/strong><\/h2>\n<p><strong>Electromagnets:<\/strong><\/p>\n<ol>\n<li>A permanent magnet is a magnet that retains its magnetion. A small permanent magnet can be used to hold notes onto the door of a refrigerator. Neodymium magnets are very powerful permenent magnets used in hard drives of computers.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-103278 aligncenter\" src=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/electromagents.png\" alt=\"electromagents\" width=\"130\" height=\"161\" \/><\/li>\n<li>Sometimes we do not want a magnet to stay magnetised all the time. We want it to lose its magnetism so that it can release the object attracted to it. Such magnets are called temporary magnets.<\/li>\n<li>An electromagnet is a temporary magnet. It is made by winding a coil of insulated wire round a soft iron core.<br \/>\nWhen a current is passed through the coil, the magnetic field produced by the current magnetises the soft iron core. The soft iron core loses all the magnetism when the current is switched off.<\/li>\n<li>An <strong>electromagnet<\/strong> is a <strong>temporary magnet which magnetic field is produced by the flow of electric current in a coil wound round a soft iron core<\/strong>.<\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-103281 aligncenter\" src=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/electromagents-1.png\" alt=\"electromagents 1\" width=\"568\" height=\"202\" srcset=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/electromagents-1.png 568w, https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/electromagents-1-300x107.png 300w\" sizes=\"(max-width: 568px) 100vw, 568px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-103282 aligncenter\" src=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/electromagents-2.png\" alt=\"electromagents 2\" width=\"688\" height=\"105\" srcset=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/electromagents-2.png 688w, https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/electromagents-2-300x46.png 300w\" sizes=\"(max-width: 688px) 100vw, 688px\" \/>The electromagnet uses the magnetic effect of an electric current. A wire carrying a current produces a magnetic field in the region around the wire.<\/p>\n<p><strong>People also ask<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/www.aplustopper.com\/what-is-a-magnet\/\">Who discovered the magnet?<\/a><\/li>\n<li><a href=\"https:\/\/www.aplustopper.com\/attraction-repulsion-of-magnetic-poles\/\">How does a magnet work?<\/a><\/li>\n<li><a href=\"https:\/\/www.aplustopper.com\/types-of-magnets\/\">What are the Different Types of Magnets?<\/a><\/li>\n<li><a href=\"https:\/\/www.aplustopper.com\/uses-of-magnets\/\">What is the use of magnet?<\/a><\/li>\n<li><a href=\"https:\/\/www.aplustopper.com\/working-of-an-electric-bell\/\">How does an electric bell work using electromagnets?<\/a><\/li>\n<li><a href=\"https:\/\/www.aplustopper.com\/the-magnetic-field\/\">What is the Magnetic Field?<\/a><\/li>\n<li><a href=\"https:\/\/www.aplustopper.com\/factors-affecting-magnitude-force-current-carrying-conductor\/\">Factors Affecting the Magnitude of the Force on a Current-carrying Conductor<\/a><\/li>\n<li><a href=\"https:\/\/www.aplustopper.com\/magnetic-force-current-carrying-conductor\/\">What is magnetic force on a current carrying conductor?<\/a><\/li>\n<li><a href=\"https:\/\/www.aplustopper.com\/factors-affect-strength-electromagnet\/\">What factors affect the strength of an electromagnet?<\/a><\/li>\n<li><a href=\"https:\/\/www.aplustopper.com\/current-carrying-conductor-produces-magnetic-field\/\">How does a current carrying conductor produces a magnetic field?<\/a><\/li>\n<li><a href=\"https:\/\/www.aplustopper.com\/magnetic-effect-of-electric-current\/\">What Is Magnetic Effect Of Electric Current?<\/a><\/li>\n<li><a href=\"https:\/\/www.aplustopper.com\/oersted-experiment-magnetic-effect-current\/\">Oersted Experiment on Magnetic Effect of Current<\/a><\/li>\n<li><a href=\"https:\/\/www.aplustopper.com\/determine-the-direction-of-the-magnetic-field\/\">How do you Determine the Direction of the Magnetic Field?<\/a><\/li>\n<li><a href=\"https:\/\/www.aplustopper.com\/meaning-of-magnetic-force\/\">What is the Meaning of Magnetic Force?<\/a><\/li>\n<\/ul>\n<h2><strong>What are some devices that use electromagnets?<\/strong><\/h2>\n<p><strong>Applications of Electromagnets:<\/strong><\/p>\n<p><strong>Lifting Electromagnets<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-103286 aligncenter\" src=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets.png\" alt=\"Applications of Electromagnets\" width=\"368\" height=\"268\" srcset=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets.png 368w, https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets-300x218.png 300w\" sizes=\"(max-width: 368px) 100vw, 368px\" \/><\/p>\n<ol>\n<li>heavy iron or steel objects such as scrap iron from place to place.<\/li>\n<li>The electromagnet is placed at the end of the cable at the arm of a crane.<\/li>\n<li>It consists of a circular soft iron core and windings made of insulated copper wire.<\/li>\n<li>There are opposite poles on the surface of the electromagnet as shown in Figure. This produces a stronger magnetic field to enable the electromagnet to lift heavier objects.<\/li>\n<li>When the power supply is switched on, the soft iron is magnetised to become a very powerful magnet.<\/li>\n<li>It lifts up iron and steel objects and separate them from non-magnetic objects.<\/li>\n<li>When the crane has moved to a new location, the power supply is switched off and the objects fall off.<\/li>\n<\/ol>\n<p><strong>Electric Bell<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-103288 aligncenter\" src=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets-1.png\" alt=\"Applications of Electromagnets 1\" width=\"611\" height=\"466\" srcset=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets-1.png 611w, https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets-1-300x229.png 300w\" sizes=\"(max-width: 611px) 100vw, 611px\" \/><\/p>\n<ol>\n<li>The electric bell is commonly used in schools as the fire alarm systems.<\/li>\n<li>The electric bell has a very simple but efficient design. There are very few moving parts. A well made electric bell can last for many years.<\/li>\n<\/ol>\n<p><strong>Electromagnetic Relay<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-103289 aligncenter\" src=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets-2.png\" alt=\"Applications of Electromagnets 2\" width=\"658\" height=\"345\" srcset=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets-2.png 658w, https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets-2-300x157.png 300w\" sizes=\"(max-width: 658px) 100vw, 658px\" \/><\/p>\n<ol>\n<li>An electromagnetic relay connects a primary circuit to a secondary circuit.<\/li>\n<li>A small current in the primary circuit will switch on a larger current in the secondary circuit.<\/li>\n<li>A relay is used in the starter system of a car. When the driver turns the key to start the engine, a small current is switched on in the primary circuit.<\/li>\n<li>Figure explains how the relay switches on a larger current in the secondary circuit to operate the starter motor of the car.<\/li>\n<\/ol>\n<p><strong>Circuit Breaker<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-103290 aligncenter\" src=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets-3.png\" alt=\"Applications of Electromagnets 3\" width=\"397\" height=\"255\" srcset=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets-3.png 397w, https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets-3-300x193.png 300w\" sizes=\"(max-width: 397px) 100vw, 397px\" \/><\/p>\n<ol>\n<li>A circuit breaker acts as an automatic switch that breaks open a circuit and switches off the current when the current becomes too large.<\/li>\n<li>In a household circuit, the current may become excessive when there is a short-circuit or an overload.<\/li>\n<li>When the current increases, the strength of the magnetic field of the electromagnet increases suddenly. The soft iron armature is pulled towards the electromagnet, as shown in Figure.<\/li>\n<li>This results in the spring pulling apart the contacts. The circuit is broken and the current flow stops immediately.<br \/>\nAfter repairs have been made, the reset button is pushed to switch on the current again.<\/li>\n<\/ol>\n<p><strong>Telephone Earpiece<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-103291 aligncenter\" src=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets-4.png\" alt=\"Applications of Electromagnets 4\" width=\"337\" height=\"264\" srcset=\"https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets-4.png 337w, https:\/\/www.aplustopper.com\/wp-content\/uploads\/2017\/03\/Applications-of-Electromagnets-4-300x235.png 300w\" sizes=\"(max-width: 337px) 100vw, 337px\" \/><\/p>\n<ol>\n<li>The permanent magnet attracts the magnetic alloy diaphragm with a constant force.<\/li>\n<li>When the caller at the other end of the line talks into the microphone, the earpiece receives a changing current from the telephone line.<\/li>\n<li>The changing current in the coils of the electromagnet changes the strength of the magnetic field. Therefore, the magnitude of the attractive force on the diagram also changes.<\/li>\n<li>This causes the diaphragm to vibrate and reproduce the sound wave from the caller.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Is an electromagnet a temporary or a permanent magnet? Electromagnets: A permanent magnet is a magnet that retains its magnetion. A small permanent magnet can be used to hold notes onto the door of a refrigerator. Neodymium magnets are very powerful permenent magnets used in hard drives of computers. Sometimes we do not want a [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[404],"tags":[4232,1747,4228,4231,486,4230,4229],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v17.8 (Yoast SEO v17.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Is an electromagnet a temporary or a permanent magnet? - A Plus Topper<\/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:\/\/www.aplustopper.com\/electromagnet-temporary-permanent-magnet\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Is an electromagnet a temporary or a permanent magnet?\" \/>\n<meta property=\"og:description\" content=\"Is an electromagnet a temporary or a permanent magnet? 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Electromagnets: A permanent magnet is a magnet that retains its magnetion. A small permanent magnet can be used to hold notes onto the door of a refrigerator. Neodymium magnets are very powerful permenent magnets used in hard drives of computers. 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