{"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":"

1. Draw circuit symbols for:
\nSwitch,wire,battery,voltmeter,ammeter,ohmmeter,resistor,variable resistor,bulb,fuse,motor,LED.<\/p>\n

2. State an equation that links voltage, current and resistance.<\/p>\n

3. Calculate the missing values in the table below.<\/p>\n

\"\"<\/a><\/p>\n

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

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

6. A 36 \uf057 resistor is connected to a 1\u20225 V supply. Calculate the current passing through the resistor.<\/p>\n

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":"

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 … Continue reading PPP Exercise 3A<\/span> →<\/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}]}}