{"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=IQoJb3JpZ2luX2VjEH4aCWV1LXdlc3QtMSJIMEYCIQCVKCG8GVnAr3bkiduT2UjmxHH%2Bx5BqtA9nZbI8RE%2Bv4AIhANQOHdcS5G%2B%2Fw7tNDy5Hev1JMYfkLt7xxgWNuTtO6EHxKrgFCEcQBRoMMjczNTcwMTk1NDMzIgzWGSHp6V2DlhZCc6gqlQUNe8vjI3xFposLMmqpwwntR4A8Zd62wlSJqO9hfJM%2BE8xHT8lt%2FA%2FzTUho7ZVbg4Avnmoo9IY662Xh%2Fi0Th8GrKfxLuDHCYigdw3OIaz%2FdT64ktOOpdYcG1F8arMA3MsCPD9GedtYVxHn0rhJwl7LWQsYYGSg6UtwfkVy7VRazFQ9osgPXt%2FT%2FSSXeHfYp%2F6Zu0DlOqyWxJJlM%2F9kF5J8IvH0kVClcxYgtk1hxc6w0QsR3ksmQfIkyOVdXX4zyxKuVrN81fy7QdkP4m%2Bp8ayll7JfcbILIBa63i0fy%2BibNgezDGSL2JofQpbm8uH%2BrflAbAOqYFoLY5uzqryciNPwhfEH9FtCssCa6vrHESIk3ivHZa%2B2XXsafUdG0qAwlpY0Gg7ayGuSmDobCxcuO46o%2BYn%2ByFsAICXpVoTwvjeHzqzDrgmcUcADa9a5Mdm6LRXHOreXkC%2FkD%2FEOdAkG2GMf%2F5kAg6O4X00UEIzjeCRpTtV02rYggo%2FVjCv%2BUHeC16C8PgbcdddAagKx43aH85MyYogc9ycYOf7xAnOKkkn00HjKU%2BlZZBZ6vh5%2Blcxhp2A65Rs0uQPZxSLE2b46wCVseyCY3oZ4ovpKBE68Qn5gfjibCaib32P%2FDSNTgMftWcsfnQRQKbbjxxYBPL4FQ%2BVX879t47yYyDSo4ZKGbIIups9GYGhrf%2FjWOZuu2kX1mjfMNQ6Lv6FT%2FzFc%2FgqDw0WevI%2FNimV8nSy3kqdIAEudji9z8LsbDnG9ZpgJK4%2FriBXadsECvqx5iqNNnjNfIvn5FC9VIxToizDTC46qV0cELiI07mv6X0tL6Hl7eTZhZHGo4s3HeYwu%2FYh5HXtRQenuTAl9L8ieRaS14ZEWCtwZyldYEjx0uMNWAtdUGOrABR8B2zYiVHYtU9P2n4q87iCnrzJQ6wvEe2V9uG%2FcelaWXEfoQ%2FAyqtcgzPcYG0caOtT0KBKkZRZEyCue3dXpPylZuJpbeo9wT8%2FDxHH5AB8xYUXk41%2FW7QJW3Z9hRmmencpVgOQXw1Pif%2BQQIwqfLiOhc3JSIuPLG3sfuQZlbekHM6KcgJtSZpBejr9nfSpC5GL7SgImFi7RjDZbgj7lYcP17f%2FUnW2BnwsOgOnNiyac%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USRN2HPY7%2F20260918%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260918T134616Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=4ba255d84795e8944a54fc52a2c09bef3680a694d1e4364bf2b9144f8ca6927d 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}]}}