{"id":130,"date":"2014-11-10T08:23:51","date_gmt":"2014-11-10T08:23:51","guid":{"rendered":"http:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/ppp-exercise-5a\/"},"modified":"2014-11-25T08:23:55","modified_gmt":"2014-11-25T08:23:55","slug":"ppp-exercise-5a","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/ppp-exercise-5a\/","title":{"rendered":"PPP Exercise 5A"},"content":{"rendered":"<p><strong>1.\u00a0\u00a0 <\/strong>State an equation that links power, voltage and resistance.<strong>\u00a0<\/strong><\/p>\n<p><strong>2.<\/strong>\u00a0\u00a0 Calculate the missing values in the table below.<\/p>\n<p style=\"text-align: center\"><a href=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphyprelimpractice\/uploads\/sites\/5115\/2014\/11\/Picture11.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-173\" title=\"Picture1\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphyprelimpractice\/uploads\/sites\/5115\/2014\/11\/Picture11.png\" alt=\"\" width=\"648\" height=\"400\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphyprelimpractice\/uploads\/sites\/5115\/2014\/11\/Picture11.png 926w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/hyndsecphyprelimpractice\/uploads\/sites\/5115\/2014\/11\/Picture11-300x185.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEAsaCWV1LXdlc3QtMSJHMEUCIQDGGeqpnHdxwQg1tLEClNRv93aL3m%2BELybWVUVL8CjztwIgPnl2TW4viYfLCY%2BDX4PU2HhUYCUdWIxZd4nTGD4loq4qwgUI0%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwyNzM1NzAxOTU0MzMiDCXgZ07ALK6%2Feo2iFyqWBfZ6c7tnhjUvFKIpRDbyciYAaFxt61oqLBk97t2mIZOc6aARM%2Bw4cQIBQXzrS1dN8wuk6MQBMHTJxznZNMIcRsx%2BwaSEOA42GSLzxvwnMgB5XBRodtVGNNiThtnwJOpD%2FTeWuKDeBmbx3WfQKLhhN2JZD7uKRAoE%2BGPx93HdoTlhWRUFi9XYsBq0SAdrqThIRpJE2A3Dk%2BoJh6%2B8kyoy7JYR9k0pVX0wKHzqDa4Wh%2F9v1Y3L%2FHMDFgJ%2BNd6j5HaeWgab7C2TEhWUQcLDHD8UW6LB1BjWV%2Bmg8C0d1XjdelLb5Z2lA7m%2FlzJ758rXel%2FI%2FA2TfMWr5z72GjzTMkCV2u7OgtGATfCJymbt73vY%2F2yFNACWuuafkEYvLwJh5a2bN%2BZqdm0OSY4KI3dFokzG%2FMwTlcIY23qOTEfKKG2JO5dGXcCgnWk7RYDJbp1%2Bmu902K7jolLlTb%2FHRPkU0R4ixY6uctasCj0OdqMcmSxyGXfxDPd7hG9r9C2cK%2FiW86B6kQqNnARTgMDAxh1y7jCrMfLOCVQF9efzYCnwXad6s2iaSNeZgdIcHD7ia8yqrRbyQp2ANrpbPKkpObtgxvDn0hDDg88CQzFI8KCXY2SI1lIJiQurambk9qEvcoqnOa48QyHaJdGOQ7Tb84mHjjihf6AwbkFpf7Pvr4Vcgm4qnh3kBXrWueMh8uqkNXQ0Jv50uitp5n%2Fke8ygiP0ImmdJJPTAoDx%2Fh2F7wZRp3rsviiinzSozNolhmG4v5KJxOysrjYsfDChcp6O1l2ofY8%2FwfPzsk0MuCBvtDRABOkcC1Rypbw1ACPwNDYwh6fNabsrYu39f9pSFM619fMlcr1A7Z%2BUxB%2FEiqlHel%2F3OX7RShlVCf6dJK%2BLYMImxwM8GOrEBXawOjnEMXZ2ghimJb6Bqdx2XdKto0ycsdoMafb4nUY8GR11%2F%2Bo7aY6LtooynviHRIar0sYCW%2FCj2rzUSHnKonMwSSdlZCpaUBji%2FKJbgK5J6Kv6yjNJAj8s3Pw05Micaw2C33TCj6lUNWpJ98PiXEjNjFfykEMAmqvOpO6AZvdS0qsBEOHqgwC3NLNbf7bsCyhJe31xBps%2BfATWhKLyWVO4cHOhMWJRp2odGsWzGrVE7&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UWDSNW6XC%2F20260428%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260428T025915Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=7d08858c464be52ece5a9139b82adcabf9dd4a73b490166d2cec57109292bd5d 300w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/a><\/p>\n<p>\u00a0<\/p>\n<p><strong><a href=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphyprelimpractice\/uploads\/sites\/5115\/2014\/11\/Fan.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-174\" title=\"Fan\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphyprelimpractice\/uploads\/sites\/5115\/2014\/11\/Fan.jpg\" alt=\"\" width=\"192\" height=\"143\" \/><\/a>3.<\/strong>\u00a0\u00a0 An electric fan is connected to the mains at 230 V. Calculate its operational resistance if it has a power of 50 W.<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p><strong>4.<\/strong>\u00a0\u00a0 An electric kettle is rated at 2\u00b72 kW. Calculate the resistance of the element if it is connected to the mains at 230 V.<\/p>\n<p><strong>5.<\/strong>\u00a0\u00a0 A low voltage spotlight used in a kitchen operates from 12 V. Calculate the power of the lamp if it has a resistance of 3 \u03a9.<\/p>\n<p><strong>6.<\/strong>\u00a0\u00a0 A 12V, 36 W light bulb is connected to a 12 V supply. Calculate the resistance of the filament.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1.\u00a0\u00a0 State an equation that links power, voltage and resistance.\u00a0 2.\u00a0\u00a0 Calculate the missing values in the table below. \u00a0 3.\u00a0\u00a0 An electric fan is connected to the mains at 230 V. Calculate its operational resistance if it has a power of 50 W. \u00a0 \u00a0 4.\u00a0\u00a0 An electric kettle is rated at 2\u00b72 kW. &hellip; <a href=\"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/ppp-exercise-5a\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">PPP Exercise 5A<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2454,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-130","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/wp-json\/wp\/v2\/pages\/130","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/wp-json\/wp\/v2\/users\/2454"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/wp-json\/wp\/v2\/comments?post=130"}],"version-history":[{"count":4,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/wp-json\/wp\/v2\/pages\/130\/revisions"}],"predecessor-version":[{"id":172,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/wp-json\/wp\/v2\/pages\/130\/revisions\/172"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/wp-json\/wp\/v2\/media?parent=130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}