{"id":97,"date":"2014-11-10T07:49:50","date_gmt":"2014-11-10T07:49:50","guid":{"rendered":"http:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/?page_id=97"},"modified":"2014-11-10T07:51:51","modified_gmt":"2014-11-10T07:51:51","slug":"ppp-exercise-3a","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/ppp-exercise-3a\/","title":{"rendered":"PPP Exercise 3A"},"content":{"rendered":"<p>1. Draw circuit symbols for:<br \/>\nSwitch,wire,battery,voltmeter,ammeter,ohmmeter,resistor,variable resistor,bulb,fuse,motor,LED.<\/p>\n<p>2. State an equation that links voltage, current and resistance.<\/p>\n<p>3. 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\/PPPEx3A-a.png\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-100\" title=\"PPPEx3A-a\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphyprelimpractice\/uploads\/sites\/5115\/2014\/11\/PPPEx3A-a.png\" alt=\"\" width=\"587\" height=\"352\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphyprelimpractice\/uploads\/sites\/5115\/2014\/11\/PPPEx3A-a.png 979w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/hyndsecphyprelimpractice\/uploads\/sites\/5115\/2014\/11\/PPPEx3A-a-300x179.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEFAaCWV1LXdlc3QtMSJGMEQCIBkXULoytoXQyPd06VrRkUfNC%2FXjLgIkhRdrs1FuhYlFAiAo4coQoL4yun4oTshgmnau0xxSB6bxTNvMKFVC2G0Muyq3BQgZEAUaDDI3MzU3MDE5NTQzMyIMXx%2FQE76GKgSMEdRKKpQF3ZgUrwnvjpKB54eT%2F4exTGo0PIR6XYEZ3%2BgobUAXYcfTI3FCsbfjuryxtJrlOUPjLr5HmnTyjD%2Bfh5OsJKebld9HfU5zaqeNtyAZOX60IyLj6%2F2vRNMo2qlvI9ic7qMy7%2FFwkURwDAoaIKsmQvPRDkh2ljRoORO6AiYkOI1kDlX4GhAwxCabATcK23IAwyNoXVU1L5U%2BZKtYWKjIxwTMyJVQU2PO%2F%2BsN5DEf3iA%2FV%2BKKs1y6W1G8OLkX7sCenQedXVbh%2FvlNOkHtypZ9SvMuQlvctTXlhXFiWjurkp4Nmyg%2Fd7ViahrgYaZPfgZhBprRZ6dGO2qU360OmGZom4w5HXyj8PCAU6E1UPcbMVr4dUUNQAyvSpvidRdphksWQKg7%2FqR3dBcfx0KKY58fKPXAzjtjA1L90eavMgrfo76XWGSVCKz7P1Kb7WapdZ8nVI85VmHae4531ajkKvbI9exGBjcdOhQ1eR0Aa%2BqElBLUJcU88c%2FbBpFjR1PIMjBOg0PB6dcudQ2VAaBQeAuGyaxwRYNKL8frx3o5uSNIgZ2YrmOXr88J6vx2OE84KeUBXZhHteoxNZPpZLyibXMMEJ%2B99%2Bw6ma%2FffAOY1KdS7CbAmEMQCHjCaG2YmbuGX8vBvMB1o6uHooWCABCxyUpA3f1k46nMvhUoujUKfqfR%2F%2Fqo3F9DNGNqGdNxTNZcbdH1cejBFwzUPcsnb%2BV6NvxNTTtCLVptEpDHkHf%2F5f0VMUTLzO09wkTLTWUldzHdl2x%2BqAGvCJQxBwYZ9eKuYp9byAfI0YbWtqAOTnn8mmSM8lRcTNffm53DmxnybzFgGocQSkokHkmnItJgIz6hPwP6Yu6x%2BfeJl0q%2Fcy83qbHAif9J4DoyM8vrMPfqi9cGOrIBMoDDWYNjEwuV7YM1vYe6P3Pcgvw2WBPMC0p3gj1lK1vWSJDuRzllYvE1qKIJ1nnswKJPem%2F8ClwyO9mzpO50HiuNKouV3eNw%2BN%2BHIPRLsMzrBq%2BBDl1w9sKLa8Dy310BXlbzlxj%2FyEQ9pId86MMwweOVLoOpbvAS87cqLC8aVhwZ%2F8nKsayrIxo%2FJV1VGWzsx0Lzl5PQ69U%2BYkz1Lh5HpwiGCa3DFXAi7W%2F7TaoVKtzlFA%3D%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UUEBQH4CW%2F20261029%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20261029T080841Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=faccc27f32385cfc038c81456dda2ab8c9dd02faa7d66a837ace953131c86d36 300w\" sizes=\"(max-width: 587px) 100vw, 587px\" \/><\/a><\/p>\n<p>4. A circuit is constructed using a power supply with a variable voltage output. It is connected to a fixed value of resistance. What will happen to the current in the circuit as the voltage is increased?<\/p>\n<p>5. An electric kettle is connected to mains electricity at 230 V. A current of 5\uf020A flows to the kettle when it is switched on. Calculate the resistance of the kettle element.<\/p>\n<p>6. A 36 \uf057 resistor is connected to a 1\u20225 V supply. Calculate the current passing through the resistor.<\/p>\n<p>7. An electric iron has a resistance of 76 \uf057. Calculate the voltage across it when the current to the iron is 3\u20220 A.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. Draw circuit symbols for: Switch,wire,battery,voltmeter,ammeter,ohmmeter,resistor,variable resistor,bulb,fuse,motor,LED. 2. State an equation that links voltage, current and resistance. 3. Calculate the missing values in the table below. 4. A circuit is constructed using a power supply with a variable voltage output. It is connected to a fixed value of resistance. What will happen to the current &hellip; <a href=\"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/ppp-exercise-3a\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">PPP Exercise 3A<\/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-97","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/wp-json\/wp\/v2\/pages\/97","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=97"}],"version-history":[{"count":4,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/wp-json\/wp\/v2\/pages\/97\/revisions"}],"predecessor-version":[{"id":102,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/wp-json\/wp\/v2\/pages\/97\/revisions\/102"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphyprelimpractice\/wp-json\/wp\/v2\/media?parent=97"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}