Expt_25

# Expt_25 - Lab-in-a-Box Experiment 25: Complex Power in AC...

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Lab-in-a-Box Experiment 25: Complex Power in AC Circuit Analysis Name: ______________________ Pledge: _____________________ ID: ______________________ Date: ______________________ Procedure Analysis: 1. Calculate the impedance of the load for the circuit shown in Figure 1 for the three resistors R 2 = 220, 470, and 820 Ω. Use a value of 100 Ω for R 1, the internal resistance of the inductor. B R 1 V i n F R E Q = 6 2 4 V A M P L = 1 V 0 R s 1 0 A L 1 0 0 m H 1 2 R 2 L o a d Figure 1: Circuit diagram for experiment with inductive reactance. 2. Calculate the real, the reactive, and the apparent power as well as the power factor for the circuit with each resistor. Record your results in Table 1.

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Table 1: Calculated Power Load Real Power (mW) Reactive Power (mVAR) Apparent Power (mVA) Power Factor (pf) 220 Ω 470 Ω 820 Ω 820 Ω || 0.1 μF Table 2: Calculated current and phase angle. Load Current Magnitude (mA) Current Phase Angle (deg) 220 Ω 470 Ω 820 Ω 820 Ω || 0.1 μF 3. Calculate the phase angle between the current and the voltage for the circuit with each resistor. Record your results in Table 2.
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## Expt_25 - Lab-in-a-Box Experiment 25: Complex Power in AC...

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