{"id":1163,"date":"2022-05-05T15:13:14","date_gmt":"2022-05-24T10:06:47","guid":{"rendered":"https:\/\/experiments.school\/?post_type=product&#038;p=1163"},"modified":"2024-07-26T10:21:59","modified_gmt":"2024-07-26T08:21:59","slug":"lemon-battery","status":"publish","type":"product","link":"https:\/\/experiments.school\/en\/product\/lemon-battery\/","title":{"rendered":"013 &#8211; Lemon battery"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<h2><strong>Fruit battery<\/strong><\/h2>\n<h2><strong> potato battery <\/strong><\/h2>\n<h2><strong>galvanic element<\/strong><\/h2>\n<h2><strong>principle of chemical battery<br \/>\n<\/strong><\/h2>\n<h2>Introduction to:<span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\">Voltage generation, redox reaction, electrochemical potential\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n[video width=\"1280\" height=\"720\" mp4=\"https:\/\/experiments.school\/wp-content\/uploads\/2022\/05\/013_-_video_-_end.mp4\"][\/video]\n<h2><span data-contrast=\"auto\">Material:\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<ul>\n<li><span data-contrast=\"auto\">Galvanized nail or screw \/ sheet zinc \/ non-noble metal.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Coin made of copper \/ copper sheet \/ noble metal\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Lemon \/ fruit (orange, grapefruit, apple, etc.) \/ potato\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">voltmeter \/ multimeter\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"auto\">+ kitchen knife\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<h2><span data-contrast=\"auto\">Setup:\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<ul>\n<li><span data-contrast=\"auto\">Roll the lemon on the tabletop under light pressure so that the pulp is partially destroyed.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Cut it in half vertically (with regards to the axis through both ends).\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li><span data-contrast=\"auto\">Insert the nail and the coin (&#8220;electrodes&#8221;) into the lemon a few centimeters apart and connect them to the multimeter.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<h2><span data-contrast=\"auto\">Procedure:\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\">Measure the electrical voltage between the electrodes, as well as the short-circuit current.\u00a0\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<h2><span data-contrast=\"auto\">Observation:\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\">A voltage of up to 0.9 V and a current of up to about 0.1 mA can be produced. <\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<h2><span data-contrast=\"auto\">Tips:\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h2>\n<p><span data-contrast=\"auto\">Several lemon batteries can be connected in series. <\/span>This can be used to operate a light-emitting diode LED.<\/p>\n<p><a href=\"https:\/\/experiments.school\/wp-content\/uploads\/2022\/05\/Reihenschaltung-mit-LED-1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1706\" src=\"https:\/\/experiments.school\/wp-content\/uploads\/2022\/05\/Reihenschaltung-mit-LED-1-276x300.jpg\" alt=\"\" width=\"276\" height=\"300\" srcset=\"https:\/\/experiments.school\/wp-content\/uploads\/2022\/05\/Reihenschaltung-mit-LED-1-276x300.jpg 276w, https:\/\/experiments.school\/wp-content\/uploads\/2022\/05\/Reihenschaltung-mit-LED-1-620x675.jpg 620w, https:\/\/experiments.school\/wp-content\/uploads\/2022\/05\/Reihenschaltung-mit-LED-1.jpg 646w\" sizes=\"auto, (max-width: 276px) 100vw, 276px\" \/><\/a><\/p>\n<h2>Field report:<\/h2>\n<p>I also told the students to get wire, a 1.5 or 9 volt cell and an LED. For those who didn&#8217;t have that, I bought one and gave it to them, and for some of the more enterprising students, I told them to make their own cells with lemon, iron nail and copper wire. Once the battery is ready, they should connect the LED and the two ends of the free wires to different things such as fruit, vegetables, vinegar, cold drinks, water, milk etc and see if the LED lights up. If it does, then the material is an electrolyte.<\/p>\n<p>A big hit with the kids and a headache for the parents.<\/p>\n<p>(from India)<\/p>\n","protected":false},"featured_media":1333,"template":"","meta":[],"product_brand":[],"product_cat":[975,984,874,879,881],"product_tag":[],"class_list":{"0":"post-1163","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-2-voltage-current","7":"product_cat-5-energy-power","8":"product_cat-b-electricity","9":"product_cat-g-magic-tricks","10":"product_cat-i-physical-devices","11":"","12":"woocommerce-text-align-left","13":"woocommerce-image-align-center","15":"first","16":"instock","17":"shipping-taxable","18":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product\/1163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/media\/1333"}],"wp:attachment":[{"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/media?parent=1163"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product_brand?post=1163"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product_cat?post=1163"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/experiments.school\/en\/wp-json\/wp\/v2\/product_tag?post=1163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}