{"id":514,"date":"2023-09-26T13:11:09","date_gmt":"2023-09-26T13:11:09","guid":{"rendered":"http:\/\/localhost\/ecole9ja\/?p=514"},"modified":"2023-09-26T13:12:44","modified_gmt":"2023-09-26T13:12:44","slug":"week-9-jss-1-third-term-basic-technology-lesson-notes","status":"publish","type":"post","link":"https:\/\/ecolebooks.com\/nigeria\/posts\/week-9-jss-1-third-term-basic-technology-lesson-notes\/","title":{"rendered":"Week 9 – Jss 1 Third Term Basic Technology Lesson Notes"},"content":{"rendered":"

Week 9. basic electricity<\/p>\n

\u00a0\u25cf The Formula Wheel \u2013 Formulas of Electrical Engineering \u25cf<\/strong>
\n\t\t\u00a0for electric voltage<\/strong>
\n\t\t\t\tV<\/em><\/strong>,<\/strong>
\n\t\tcurrent<\/strong>
\n\t\tI<\/em>,<\/strong>
\n\t\tresistance
\n\t\t\t\t\tR<\/em>, impedance<\/strong>
\n\t\tZ<\/em>, power P<\/em><\/strong>Magic circle \u2212 Formulas for calculating any combination of electrical units<\/strong>
\n\t\u00a0
\n\u00a0<\/p>\n

\n\n\n\n
\n\u00a0<\/p>\n
\n\n\n\n\n\n\n\n\n\n
Principles of Electrical Engineering<\/strong>Physics<\/strong>
\n\t\t\t\t\t\t\t\t\t\t\t\tFormulary and Electricity<\/strong>
\n\t\t\t\t\t\t\t\t\t\t\t\tEquations<\/strong><\/td>\n<\/tr>\n
\u00a0\u00a0<\/td>\n<\/tr>\n
\u00a0Formula Wheel<\/em><\/strong><\/td>\n\u25bc<\/td>\n\u00a0Important\u00a0Formulas<\/em><\/strong><\/td>\n<\/tr>\n
Electrical engineering laws<\/em><\/strong><\/td>\n\u00a0\u00a0<\/td>\nElectronic engineering laws<\/em><\/strong><\/td>\n<\/tr>\n
Electrical formulas as circle diagram (pie chart)<\/strong><\/td>\n<\/tr>\n
\u00a0\u00a0<\/td>\n<\/tr>\n
\"\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u00a0
\n\u00a0<\/p>\n

\n\n\n\n
V<\/em><\/strong> comes from “voltage” and E<\/em><\/strong> from “electromotive force emf”. E<\/em><\/strong> means also energy<\/strong>, so let’s choose V<\/em><\/strong>.Energy = voltage \u00d7 charge. E<\/em><\/strong> = V<\/em><\/strong> \u00d7 Q<\/em><\/strong>. Some like better to stick to E<\/em><\/strong> instead to V<\/em><\/strong>, so do it.\n\t\t\t\t\t\t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u00a0
\n\u00a0<\/p>\n

\n\n\n\n
Voltage V<\/em><\/strong> = I<\/em> \u00d7 R<\/em> = P<\/em> \/ I<\/em> = \u221a(P<\/em> \u00d7 R<\/em>) in volts V\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Current I<\/em><\/strong> = V<\/em> \/ R<\/em> = P<\/em> \/ V<\/em> = \u221a(P<\/em> \/ R<\/em>) in amperes AResistance R<\/em><\/strong> = V<\/em> \/ I<\/em> = P<\/em> \/ I<\/em>2 <\/sup>= V<\/em>2<\/sup>\/ P<\/em>
\n\t\t\t\t\t\t\tin ohms \u03a9\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Power P<\/em><\/strong> = V<\/em> \u00d7 I<\/em> = R \u00d7 I<\/em>2<\/sup>= V<\/em>2<\/sup>\/ R <\/em>in watts W<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u00a0Electric current, electric power, electricity \u2212 Formulas and calculations<\/strong>\u00a0\u00a0
\n\tElectric voltage V<\/em> = I<\/em> \u00d7 R<\/em>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(Ohm’s law formula)<\/strong>Electric voltage = amperage \u00d7 resistance\u00a0Please enter two<\/strong> values, the third value will be calculated.<\/p>\n

\u00a0Top of Form<\/p>\n

\n\n\n\n
\n\u00a0<\/p>\n
\n\n\n\n\n\n\n\n
\u00a0\u00a0<\/td>\n<\/tr>\n
\u00a0Electric voltage V<\/em>\u00a0<\/td>\n\"\"\/volts<\/td>\n\"\"\/<\/td>\n<\/tr>\n
Amperage I<\/em>\u00a0<\/td>\n\"\"\/amps\u00a0<\/td>\n<\/tr>\n
Resistance R<\/em>\u00a0<\/td>\n\"\"\/ohms<\/td>\n<\/tr>\n
\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Bottom of Form<\/p>\n

\n\n\n\n
\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Top of Form<\/p>\n\n\n\n
\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
V = I \u00d7 R<\/em><\/strong>
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\tI = V \u2044 R<\/em><\/strong>
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\tR = V \u2044 I<\/em><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Bottom of Form
\nElectric power <\/strong>P<\/em> = I<\/em> \u00d7 V<\/em>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(Watt’s power law formula)<\/strong>Electric power = amperage \u00d7 voltage\u00a0Please enter two<\/strong> values, the third value will be calculated.<\/p>\n

\u00a0Top of Form<\/p>\n

\n\n\n\n
\n\u00a0<\/p>\n
\n\n\n\n\n\n\n\n
\u00a0\u00a0<\/td>\n<\/tr>\n
\u00a0\u00a0Electric Power P<\/em>\u00a0<\/td>\n\"\"\/watts<\/td>\n\"\"\/<\/td>\n<\/tr>\n
Amperage I<\/em>\u00a0<\/td>\n\"\"\/amps\u00a0<\/td>\n<\/tr>\n
Voltage V<\/em>\u00a0<\/td>\n\"\"\/volts<\/td>\n<\/tr>\n
\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Bottom of Form<\/p>\n

\n\n\n\n
\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u00a0<\/p>\n

\n\n\n\n
Top of Form<\/p>\n
\n\n\n\n
\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
P = I \u00d7 V<\/em><\/strong>
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tI = P \u2044 V<\/em><\/strong>
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tV = P \u2044 I<\/em><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Bottom of Form
\nIf the unit of power P = I \u00d7 V<\/em><\/strong>
\n\t\t\t\t\t\t\t\tand of voltage V = I \u00b7 R<\/em> is needed<\/strong>look for<\/strong>
\n\t\t\t\t\t\t\t\t\"\"\/“The Big Power Formulas”:<\/strong>Calculations: Power (watt), voltage, current, and resistance<\/strong>
\n\t\t\t\t\t\t\t1.what is the formula for calculating current, voltage and resistance
\n2.define ohms law<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Week 9. basic electricity \u00a0\u25cf The Formula Wheel \u2013 Formulas of Electrical Engineering \u25cf \u00a0for…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,82],"tags":[],"class_list":["post-514","post","type-post","status-publish","format-standard","hentry","category-posts","category-third-term-jss1-basic-technology"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/514","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/comments?post=514"}],"version-history":[{"count":1,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/514\/revisions"}],"predecessor-version":[{"id":515,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/514\/revisions\/515"}],"wp:attachment":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/media?parent=514"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/categories?post=514"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/tags?post=514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}