Impedance, Voltage, Power Triangles,Trigonometry & Pythagoras Complete Calculations 

Easy Guide to... Impedance, Voltage & Power Triangles with explanations and complete calculations. Complete guide to calculations using trigonometry and graphical methods. Draw to scale the triangles and calculate each side. Watts, Apparent power and Reactive power. W, VA & VAr. Impedance triangles Resistance, Reactance & Impedance. R, Xl or Xc & Z. Voltage Triangles Vr,Vs & Vx. Pythagoras explained and used, as well a guide to trigonometry. Ideal for level 2, 3 or higher. Electrical Calculations for those principles exams.

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