Question

Q2. The 'Enersonic Power Saver' was featured on the Seven Network Sunrise program, 3 March 2008. The description claims that by using this device, you will save on your electricity bill if you use inductive loads (e.g. fridges, motor, fluorescent lights etc.) The circuit diagram is: To LED power circuit ー6uF varisto mains plug The varstor'for ovarpn (i) Assume a series R (10 Ω) and L (1.0 mH) are connected across the output (across C). Draw the current phasor diagram (ii) Will the device reduce the electricity consumption of a typical household. Fully justify your answer.

Answer 1

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