{"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=IQoJb3JpZ2luX2VjEKD%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJIMEYCIQC4Uc8w4IhgChHr%2Feb9rmLDBW7ZBfQBIA4Vm7fsb1xsggIhAKp5ELjWXOJvFgYFZO%2BAhOVcnunxlyAADbMI77zxihrmKrgFCGkQBRoMMjczNTcwMTk1NDMzIgwIRArxArk07bUHYAsqlQUZSw3N1VGBtEp4BhKx8POG7%2BPj0%2F3AjAooabx4hPPAJ7afDcEZy7BpvN41BV0gl%2FxWsRtj5y7%2FhJNnXtsaS3sm8pIA4Qcn18TAFSZOVMavI%2F3rLPte%2BSSQEgzjCGFqidOHIJbHToLzs%2FN%2FJZB4Ga1dh%2BJVMoMymyC4dJM7bdo1DjkYlSEcLD%2FzML%2BjcAy%2F%2BOZ%2FbJCsQrt7hf6pFPafPaxxFgmRWdOoFoRBXafj1U%2Fu7DKV82MXxdN2hz4Ftijg%2B%2FWqaFV5yEThTbB2tpn0jqumuqFUICN%2Bd656kWeVnHSPnDNCBcJgQfd9sBPt3%2BNXovXFqIHDjZnLkFkp1h0iFs%2FHYTKTmX2emaOycf11Iz6OcwEwqO9RF7MTx5EjHHz1TtBMsGsvTyXMZYWGubN0kWzHNy6zzLZg7JpeKwYD%2B%2BrYAfEfcE0Oox%2FX%2BTv%2Fj12vHWnQR6cp1DxiVPu1wrxR3IiEOVM6MycF9bSqF5uOw0fME9FLW4olTLuCtGqxe7K7BBFImc8Lda7PP657i%2BKgh%2BhHtEjBmPmis2bzaRbnisg9Y8pJvvPEAgakivRK2a6cMRoWbI%2F35oYO0BDBegUiQsM18CpwPDJUzSnhRv78pIufVkhuoqL2Z5O2xEqwaDXQ5ldYz0rNTGAhzi%2Bb3iuv1ffzE0ziw5DvDWoCsQwD%2BryTUyaxY4K36FcG3LrwIR1BYXXfVUCQwJizRcVoPQa4b9bhCDHquu76Rxn8zvETxqT4hs5ioK%2BW%2FNYqiNvf7xy47njCWEV7f%2BkzO0X5pbhxxs17SwxgI0gkRfpO%2FvtKfJIHasWRXWLSSSeWRGFTWxVOrKp%2Bk%2ByUIsDwMI1Fxxkk%2FIoykBZnKCWLFPWL3LI06r5f6RcxbHprMLO629MGOrABSFtljcK31TchdUzOAudW%2BPfvrhiU70hqdQVsNxoWTPpnA4UHqd%2B7pGhI%2BJdpEiOhT5%2F7reqG9wphxs3g7vjOoNyqntsUOtSsHDPA%2FYsYikHuXBfPNaKoV150ErLIfP5smXcFi0G9r4qkBcND%2FeHruTjtJVvXsmXMC36O4tH%2Fy7CTIJirQHKbRMjhsYnVsIRIR87sDcIpNtJC5OwBigTVRQ4WSuX1DquEIsttoBTw5Tg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZ4B2IWJ7%2F20260808%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260808T081426Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=09d12cc98b73ed2ca64f697793c4d0d2235a72583068928b223c0819f19c5b3d 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}]}}