hwPA1c.pdf - ECE 2210 Homework PA1 c Note In the following problems you may assume voltages and currents are RMS unless stated otherwise or given as a

hwPA1c.pdf - ECE 2210 Homework PA1 c Note In the following...

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ECE 2210 Homework PA1 c Note: In the following problems, you may assume voltages and currents are RMS unless stated otherwise or given as a function of time. 1. Read the AC power notes and examples. 2. Compute the power factor for an inductive load consisting of L . 20 mH and R . 6 in series. ϖ . 377 rad s 3. The complex power consumed by a load is 620 /29 o VA . Find: a) Apparent power (as always, give the correct units). b) Real power. c) Reactive power. d) Power factor. e) Is the power factor leading or lagging? f) Draw a phasor diagram. 4. In the circuit shown, the voltmeter measures 120V , the ammeter measures 6.3A and the wattmeter measures 560W . The load consists of a resistor and an inductor. The frequency is 60Hz . Find the following: a) Power factor b) Leading or lagging? c) Real power. d) Apparent power. e) Reactive power. f) Draw a phasor diagram. g) The load is in a box which cannot be opened. Add another component to the circuit above to correct the
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