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7Px HNH 15 Whiringa-ā-Nuku 2015 What we will do What we will learn Preliminaries and RollHow to start well See that inductors react against AC and why.

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Presentation on theme: "7Px HNH 15 Whiringa-ā-Nuku 2015 What we will do What we will learn Preliminaries and RollHow to start well See that inductors react against AC and why."— Presentation transcript:

1 7Px HNH 15 Whiringa-ā-Nuku 2015 What we will do What we will learn Preliminaries and RollHow to start well See that inductors react against AC and why That inductors do work in AC circuits but… See the effect of increased inductance on AC current What L does to I in AC Assemble the Inductor Reactance formula What shape the formula is AND what the constant is Do the preliminary quHow to tackle test-type questions Set a due date for AC Unit 3 and have some HRT on it How to tackle exam-type questions

2 No. of marks What for 1 Having sketches and FULL working 1 Neat presentation and down-page format 1 Answer underlined and units given 1 Self marked and all correct – eventually 1 In on time and signed for (“This is my own work”…….) Total A mark out of five that will contribute to the “homework” grade in the reports

3 HW item Skills practiced Capacitors in DC: Unit 4 Due Monday the 21 st of Sept Networks of capacitors Capacitors in DC: Unit 3 Due Tuesday the 22 nd of Sept Energy stored on capacitors Inductors in DC: Units 1 and 2 Due Wednesday the 14 th of Oct Magnetic Flux and Faraday’s Law Inductors in DC: Units 3 and 4 Due Wednesday the 14 th of Oct Lenz’s Law and Transformers Inductors in DC: Units 5 and 6 Due Thursday the 15 th of Oct Inductance and time constant for Inductors AC: Unit 1 and 2 Due Thursday 22 nd of October The sine wave nature of V and I RMS and Peak values for V and I Capacitor Reactance AC: Unit 3 Due Friday 23 rd of October Reactance of an Inductor

4 http://whangareigirlshigh physics.wikispaces.com/ NCEA3+Physics+Core

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