PowerPoint Presentation

7Px 19 Mahuru 2013What we will doWhat we will learnPreliminaries and rollThe importance of starting wellExamine how to get a current in a coil with no battery brieflyHow to use flux linkage to drive a currentDo the above continuouslyAbout the delta in Faradays lawSee how the primary coils ADD flux and how the secondary coils USE fluxHow the energy is moved in a transformerSee the ratios involved in perfect transformersHow perfect transformers work and why we use themSee a general definition of efficiency and how it applies to transformersThat nothing is perfect and perfection is impossibleSet some new HW & have some HRTAnd bring slide 3 up-to-dateHow to rehearse the skills we will need for exams

Tomorrow is Abbeys birthday

Important Notice

7 Physics Homework MarkingNo. of marksWhat for1Having sketches and FULL working1Neat presentation and down-page format1Answer underlined and units given1Self marked and all correct eventually1In on time and signed for (This is my own work.)TotalA mark out of five that will contribute to the homework grade in the reports

HW itemSkills practised WavesUnits 1 4 and unit 8: pp 21 35and pp 45 - 47Due Mon 12 August 13Superposition, Standing Waves, the Physics of MusicWavesUnits 5, 6, 7 and 9Due Wed 14 August 13Twin Source Interference and Doppler EffectWaves Test End of TopicFri 16 August 13 in period 5Everything in the Waves Achievement StandardWaves and Mechanics Mock Exam BookletsWed 28 August 13Everything we have learned in the Waves and Mechanics topics