[amp_mcq option1=”power” option2=”potential difference” option3=”electric current” option4=”energy” correct=”option3″]<\/p>\n
The correct answer is C. electric current.<\/p>\n
The SI unit of electric current is the ampere (A), which is named after Andr\u00c3\u00a9-Marie Amp\u00c3\u00a8re. The ampere is defined as the constant current that, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed one metre apart in a vacuum, would produce between these conductors a force equal to 2 \u00c3\u0097 10\u00e2\u0088\u00927 newton per metre of length.<\/p>\n
Power is the rate at which energy is transferred or converted. The SI unit of power is the watt (W), which is equal to one joule per second.<\/p>\n
Potential difference is the difference in electric potential between two points. The SI unit of potential difference is the volt (V), which is equal to one joule per coulomb.<\/p>\n
Energy is the ability to do work. The SI unit of energy is the joule (J), which is equal to the work done by a force of one newton acting over a distance of one metre.<\/p>\n","protected":false},"excerpt":{"rendered":"
[amp_mcq option1=”power” option2=”potential difference” option3=”electric current” option4=”energy” correct=”option3″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[957],"tags":[],"class_list":["post-46272","post","type-post","status-publish","format-standard","hentry","category-basic-general-knowledge","no-featured-image-padding"],"yoast_head":"\n