{"id":6627,"date":"2022-03-10T00:00:00","date_gmt":"2022-03-09T23:00:00","guid":{"rendered":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/?post_type=purple_issue&p=6627"},"modified":"2022-03-23T14:44:14","modified_gmt":"2022-03-23T13:44:14","slug":"how-does-wireless-charging-work","status":"publish","type":"post","link":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/2022\/03\/10\/how-does-wireless-charging-work\/","title":{"rendered":"How does wireless charging work?"},"content":{"rendered":"\n

How does wireless charging work?<\/strong><\/h2>\n\n

GEMMA LAWRENCE<\/p>\n\n

\"\"<\/figure><\/div>\n\n

Electrons are clever subatomic particles. Push them along a wire and you\u2019ve got electricity. Coil that wire, and you get a magnetic field \u2013 that\u2019s how electric motors get their push. Put the coil near another one with a shared iron core to direct the magnetism, and power is induced in the second coil \u2013 that\u2019s how transformers change voltages. Pulse electrons through the coil and you can separate the other coil a little further away, enabling you to put the emitter in a charging pad, and receiving antenna in a phone. Bring the phone within range and it will have electricity induced in its coil by the electromagnetic pulses resonating from the charging pad. <\/span>PB<\/strong><\/p>\n\n

<\/div>
\n

Email your questions to<\/span>
questions@sciencefocus.com<\/a>
or submit on Twitter<\/span>
@sciencefocus<\/a><\/p>\n<\/div><\/section>\n\n

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

How does wireless charging work? GEMMA LAWRENCE Electrons are clever subatomic particles. Push them along a wire and you\u2019ve got electricity. Coil that wire, and you get a magnetic field \u2013 that\u2019s how electric motors get their push. Put the coil near another one with a shared iron core to direct the magnetism, and power […]<\/p>\n","protected":false},"author":24,"featured_media":6626,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ub_ctt_via":"","purple_page_number":"85","purple_custom_meta_purple_page_number":"85","purple_seq_number":"1","purple_custom_meta_purple_seq_number":"1","purple_source_article":"article_85-1.xml","purple_custom_meta_purple_source_article":"article_85-1.xml","purple_source_issue":"March-2022","purple_custom_meta_purple_source_issue":"March-2022","purple_external_id":"March-2022-85-1","purple_custom_meta_purple_external_id":"March-2022-85-1","purple_issue_code":"|0000089651||","purple_custom_meta_purple_issue_code":"|0000089651||","purple_android_product":"com.focus.magazine.issue375","purple_custom_meta_purple_android_product":"com.focus.magazine.issue375","purple_ios_product":"com.focus.magazine.issue375","purple_custom_meta_purple_ios_product":"com.focus.magazine.issue375","purple_web_product":"","purple_custom_meta_purple_web_product":"","purple_publication_id":"0f422ad1-c939-476d-9f82-a410052ad4c3","purple_migrated":"","kt_blocks_editor_width":"","apple_news_api_created_at":"2022-03-11T11:29:57Z","apple_news_article-theme":"","apple_news_api_id":"baa46899-86c8-4696-b92c-54a439cdd941","apple_news_api_modified_at":"2022-03-23T13:44:20Z","apple_news_api_revision":"AAAAAAAAAAAAAAAAAAAACQ==","apple_news_api_share_url":"https:\/\/apple.news\/AuqRomYbIRpa5LFSkOc3ZQQ","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":true,"apple_news_is_preview":true,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_article_theme":"","apple_news_sections":"[]"},"categories":[30],"tags":[15],"apple_news_notices":[],"featured_image_src":"https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/03\/6599a657-b839-4437-b681-ebc1b33033f7.jpg","author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/author\/importmanagerhubsprylab-com\/"},"acf":{"readingTimeMinutes":"< 1","apple_news_title":""},"uagb_featured_image_src":{"full":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/03\/6599a657-b839-4437-b681-ebc1b33033f7.jpg",1293,1011,false],"thumbnail":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/03\/6599a657-b839-4437-b681-ebc1b33033f7-150x150.jpg",150,150,true],"medium":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/03\/6599a657-b839-4437-b681-ebc1b33033f7-300x235.jpg",300,235,true],"medium_large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/03\/6599a657-b839-4437-b681-ebc1b33033f7-768x601.jpg",768,601,true],"large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/03\/6599a657-b839-4437-b681-ebc1b33033f7-1024x801.jpg",800,626,true],"1536x1536":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/03\/6599a657-b839-4437-b681-ebc1b33033f7.jpg",1293,1011,false],"2048x2048":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/03\/6599a657-b839-4437-b681-ebc1b33033f7.jpg",1293,1011,false]},"uagb_author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/author\/importmanagerhubsprylab-com\/"},"uagb_comment_info":0,"uagb_excerpt":"How does wireless charging work? GEMMA LAWRENCE Electrons are clever subatomic particles. Push them along a wire and you\u2019ve got electricity. Coil that wire, and you get a magnetic field \u2013 that\u2019s how electric motors get their push. Put the coil near another one with a shared iron core to direct the magnetism, and power…","_links":{"self":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/posts\/6627"}],"collection":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/comments?post=6627"}],"version-history":[{"count":5,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/posts\/6627\/revisions"}],"predecessor-version":[{"id":11055,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/posts\/6627\/revisions\/11055"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/media\/6626"}],"wp:attachment":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/media?parent=6627"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/categories?post=6627"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/tags?post=6627"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}