{"id":78839,"date":"2026-09-24T23:11:31","date_gmt":"2026-09-24T23:11:31","guid":{"rendered":"http:\/\/bangla.sitestree.com\/?p=78839"},"modified":"2026-09-24T23:11:32","modified_gmt":"2026-09-24T23:11:32","slug":"signal-and-electrical-signal","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=78839","title":{"rendered":"Signal and Electrical Signal"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">A <strong>signal<\/strong> is a physical quantity that changes over time or space.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Examples include changes in sound pressure, light, temperature, voltage, or current.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An <strong>electrical signal<\/strong> is a changing electrical quantity, usually <strong>voltage or current<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In electrical and electronics textbooks, signals are often shown as graphs:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Voltage\n  \u2191\n  |      \/\u203e\\      \/\u203e\\\n  |     \/   \\    \/   \\\n  |____\/     \\__\/     \\____ \u2192 Time<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">In this graph:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>the horizontal axis represents <strong>time<\/strong>,<\/li>\n\n\n\n<li>the vertical axis represents the <strong>signal value<\/strong>, often voltage,<\/li>\n\n\n\n<li>the curve shows how that value changes over time.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">So, in simple terms:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Signal:<\/strong> a physical quantity that changes.<br><strong>Electrical signal:<\/strong> a voltage or current that changes over time.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>From AI Tools as is.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A signal is a physical quantity that changes over time or space. Examples include changes in sound pressure, light, temperature, voltage, or current. An electrical signal is a changing electrical quantity, usually voltage or current. In electrical and electronics textbooks, signals are often shown as graphs: In this graph: So, in simple terms: Signal: a &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"http:\/\/bangla.sitestree.com\/?p=78839\">Continue reading<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[265],"tags":[],"class_list":["post-78839","post","type-post","status-publish","format-standard","hentry","category-telecommunications","item-wrap"],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":78841,"url":"http:\/\/bangla.sitestree.com\/?p=78841","url_meta":{"origin":78839,"position":0},"title":"Electrical Signal vs. Electromagnetic Signal","author":"Sayed","date":"September 25, 2026","format":false,"excerpt":"An electrical signal is a changing electrical quantity, usually voltage or current, in a wire, cable, or electronic circuit. Examples include: signals traveling through copper Ethernet cables, audio signals inside electronic circuits, voltage pulses inside digital electronics. A simple way to think about it is: Electrical signal = changing voltage\u2026","rel":"","context":"In &quot;\u099f\u09c7\u09b2\u09bf\u0995\u09ae\/Telecommunications&quot;","block_context":{"text":"\u099f\u09c7\u09b2\u09bf\u0995\u09ae\/Telecommunications","link":"http:\/\/bangla.sitestree.com\/?cat=265"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":78837,"url":"http:\/\/bangla.sitestree.com\/?p=78837","url_meta":{"origin":78839,"position":1},"title":"From AI Tools as is.","author":"Sayed","date":"September 24, 2026","format":false,"excerpt":"Electrical Signals: What Is Really Traveling Through a Wire? Electrical Signals: What Is Really Traveling Through a Wire? When people hear the phrase electrical signal, it is easy to imagine electricity as something flowing through a wire like water through a pipe. That picture is useful in some situations, but\u2026","rel":"","context":"In &quot;\u099f\u09c7\u09b2\u09bf\u0995\u09ae\/Telecommunications&quot;","block_context":{"text":"\u099f\u09c7\u09b2\u09bf\u0995\u09ae\/Telecommunications","link":"http:\/\/bangla.sitestree.com\/?cat=265"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":78835,"url":"http:\/\/bangla.sitestree.com\/?p=78835","url_meta":{"origin":78839,"position":2},"title":"Data and Signals: A Simple Way to Understand How Communication Works","author":"Sayed","date":"September 24, 2026","format":false,"excerpt":"Most digital communication can be understood with one simple idea: Data and Signals: A Simple Way to Understand How Communication Works Data is the information represented in a form that a system can use. A signal is the physical way that data is carried from one place to another. This\u2026","rel":"","context":"In &quot;\u099f\u09c7\u09b2\u09bf\u0995\u09ae\/Telecommunications&quot;","block_context":{"text":"\u099f\u09c7\u09b2\u09bf\u0995\u09ae\/Telecommunications","link":"http:\/\/bangla.sitestree.com\/?cat=265"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1047,"url":"http:\/\/bangla.sitestree.com\/?p=1047","url_meta":{"origin":78839,"position":3},"title":"Lecture &#8211; 04: Kirchhoff&#8217;s Voltage Law and Current Law (\u09b2\u09c7\u0995\u099a\u09be\u09b0 &#8211; \u09e6\u09ea: \u0995\u09bf\u09b0\u09cd\u099b\u09ab \u098f\u09b0 \u09ad\u09cb\u09b2\u09cd\u099f\u09c7\u099c \u09b8\u09c2\u09a4\u09cd\u09b0 \u098f\u09ac\u0982 \u09ac\u09b0\u09cd\u09a4\u09ae\u09be\u09a8 \u09b8\u09c2\u09a4\u09cd\u09b0)","author":"Author-Check- Article-or-Video","date":"April 14, 2013","format":false,"excerpt":"","rel":"","context":"In &quot;Academic&quot;","block_context":{"text":"Academic","link":"http:\/\/bangla.sitestree.com\/?cat=2"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1049,"url":"http:\/\/bangla.sitestree.com\/?p=1049","url_meta":{"origin":78839,"position":4},"title":"Lecture &#8211; 05: Voltage Divider, Current Divider, Ameter, and Voltmeter (\u09b2\u09c7\u0995\u099a\u09be\u09b0 &#8211; \u09e6\u09eb: \u09ad\u09cb\u09b2\u09cd\u099f\u09c7\u099c \u09a1\u09bf\u09ad\u09be\u0987\u09a1\u09be\u09b0, \u0995\u09be\u09b0\u09c7\u09a8\u09cd\u099f \u09a1\u09bf\u09ad\u09be\u0987\u09a1\u09be\u09b0, \u0985\u09cd\u09af\u09be\u09ae\u09bf\u099f\u09be\u09b0, \u098f\u09ac\u0982 \u09ad\u09cb\u09b2\u09cd\u099f\u09ae\u09bf\u099f\u09be\u09b0)","author":"Author-Check- Article-or-Video","date":"April 14, 2013","format":false,"excerpt":"","rel":"","context":"In &quot;Academic&quot;","block_context":{"text":"Academic","link":"http:\/\/bangla.sitestree.com\/?cat=2"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1041,"url":"http:\/\/bangla.sitestree.com\/?p=1041","url_meta":{"origin":78839,"position":5},"title":"Lecture &#8211; 01: Voltage and Current (\u09b2\u09c7\u0995\u099a\u09be\u09b0 &#8211; \u09e6\u09e7: \u09ad\u09cb\u09b2\u09cd\u099f\u09c7\u099c \u098f\u09ac\u0982 \u0995\u09be\u09b0\u09c7\u09a8\u09cd\u099f)","author":"Author-Check- Article-or-Video","date":"April 14, 2013","format":false,"excerpt":"","rel":"","context":"In &quot;Academic&quot;","block_context":{"text":"Academic","link":"http:\/\/bangla.sitestree.com\/?cat=2"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_featured_media_url":"","_links":{"self":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/78839","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=78839"}],"version-history":[{"count":1,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/78839\/revisions"}],"predecessor-version":[{"id":78840,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/78839\/revisions\/78840"}],"wp:attachment":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=78839"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=78839"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=78839"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}