{"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 loading=\"lazy\" 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=IQoJb3JpZ2luX2VjECcaCWV1LXdlc3QtMSJGMEQCIBFILoYN5FKwpmP8iwyVCe2w4Z7Iu%2BgsljTZAUZw6OuyAiB0sKjP%2FTF0VrGxayCdU%2BnhM04b7%2BI8lBsTNMBn5vB5%2FCrCBQjw%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F8BEAUaDDI3MzU3MDE5NTQzMyIMopci4hHzegYraalGKpYFXxvBLiXI6ZmehrxhsU7FcIHHmglmz7BT5uptYcpdqMeTBQZuKmBdXQTCiHhAo0S8r1S0QyCTTcSNs3QABEaGPrJ45OE9h7olUA%2BcE6aJLU9PZEg45okz6bRPPpqYDkh59ryB9tudph5df%2B8PmmAQLoEgLUieeMLUdkrZPS0lpfI5ANqenuUCoIKI%2FhDGuFOAZutiwx6bVyxvt7TdQg8uFCFESYSouqdiBRoo4XKc14ilLLrguFu5lEIGPGuthMe00LeZpnANcFU8WE5K8XvblM0hAj3XIt7rJ5WI6XfgpBZoHGcNfqbN9HWPDHoAZh98VDrJwFirUXO3B0BSlyZYnPjDCQVgQC6H68j95g3wCTxBBgTVn7Wu1Zv1tLW6381RETLXeARzB5EvaVh2eQbex5rd7cdPOHG9CE4THOJvFxCidrBqKtJQLHHwIMBQX%2FJn3j%2BA6LYxmT7i1OWa9efwbr0jh9qXZh929RtqQk%2B9wEAz2mL0EaOENwcnaj1DZ4lacTX96rCEsLpaIYoFaVll4lzRR28uRSM5omFA%2BQdaFtDIiUVP5AlBp76yboQrwQpOjaNqzYeldwa4hT1fLXIZwOdT4qwhMwu2JeTvJt4uF%2FH7Zn%2FDgD%2BQCZrtu1jpaffXNYwK8IWf2r%2BEqkPM9313uS892W8phVCJiQnb39dT%2FiGo7EZJjfWjGShgtpCZqH%2FlzjzPBgZKNbo2x%2FZJAemoztYph9WXEy4rmt22yqDTDejrQyHHIpssmoofFZk58celAqH4LUc5cqKmg%2FizVBidRgsv1UZSxIbmv5tq95EHK5BTKaTpbbRf6sx14ngno1SUYWEjAYNm8ag3ieFYVXHncucAciJbXZohoFX34ejLTEpC5Ee5C5EwsJrWzgY6sgHw0yOWRlVB4WEIvMIsVKAtuVlGDpDbcxpx4oqPjAp5hO%2Fi%2FEz6N8ztvSjCILNgWha2poFEmVj%2BvgzPaORSq5NOca5ejyjsJfMLYxU65YGsGuhbWKv8F0v54TRoJq6yMRNKBMdFm%2FLThmiqWyAu5HHMG1MuQJidKeXVVAYDBU8IwBLKuEAYgGArv5avRTFUVWsPx2mrgPw4UTb6w%2FdynH5ZkFkyE1XschVZejmQDsEszj4c&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47U6Q7VB75X%2F20260407%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260407T233820Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=4ccffc24fdea9c535d8824bcfbc7e937f128ecfb84ebcb7a3298fdbfe16ee742 300w\" sizes=\"auto, (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}]}}