91526 Electrical Systems - Home Use

This Digital Resource has less sophisticated functionality as it was one of the first we developed and is priced to reflect this.

This resource covers the things you need to know and be able to do for the NCEA Level 3 Achievement Standard 91526 (Physics 3.6) Demonstrate understanding of electrical systems.

What you'll learn

In this resource you’ll learn about: 

• Internal resistance
• Simple application of Kirchoff's laws
• Parallel plate capacitors; capacitance; dielectrics; series and parallel capacitors; charge-time, voltage-time and current-time graphs for a capacitor; time constant; and energy stored in a capacitor
• Magnetic flux; magnetic flux density; Faraday's law; Lenz's law; the inductor; voltage-time and current-time graphs for an inductor; time constant; self-inductance; energy stored in an inductor; and the transformer
• Comparison of the energy dissipation in a resistor carrying direct current and alternating current; peak and RMS voltage and current
• Phasor diagrams; reactance and impedance and their frequency dependence in a series circuit; voltage and current and their phase relationship in LR and CR circuits; and resonance in LCR circuits.

LearnWell Digital resources put the learner at the centre. Using almost any device, students can easily work at a pace that suits them through interactive, scaffolded learning and activities.  

You can find out more on the information page about our LearnWell Digital resources.