7Px 22 Whiringa-ā-Nuku 20137Px 22 Whiringa-ā-Nuku 2013What we will do What we will learnPreliminaries and roll The importance of starting

well

See the link between frequency and current (all else being equal)

Where the “bell curve” comes from

Look at how to minimize impedance and (therefore) maximise current

How to “balance the load”

Extend the above to industrial Power Factor Correction

How to make the phase angle as small as possible

See the reprise of resonance How bridges and “The Edge” are linked

Set some HRT, check our website schedule and revisit our time plan between now and 25 November

How to make the best possible use of time.

7 Physics Homework MarkingNo. 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

HW item Skills practised Resistors in DCUnits 1 - 3Due Wed 25 September 13

Revision of Y12 Electricity, Internal Resistance, Kirchhoff’s Laws

Capacitors in DCUnits 1 - 4Due Wed 16 October 13

Capacitance, the capacitor construction formula, networks of capacitors, time constant and CR circuits

Inductors in DCUnits 1 - 6Due Tues 22 October 13

Revision of Y12 Induction, Faraday’s Law, Lenz’s Law, Transformers, Self Inductance, Time constants in inductors

AC CircuitsUnits 1 - 7Due 29 October 13

AC

EOT Test Electrical SystemsDue Tues 29 October 13

Electrical Systems