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10.2 Compute the power factor and the reactive factor for the network inside the box in Fig. 10.6, whose voltage and current are described in Example 10.1. Hint: Use to calculate the power and reactive factors. Answer: pf = 0.5 leading; rf = -0.866. v = 100 cos (vt + 15) V, i = 4 sin (vt - 15) A.

10.2 Compute the power factor and the reactive factor for the network inside the box in Fig. 10.6, whose voltage and current are described in Example 10.1. Hint: Use to calculate the power and reactive factors. Answer: pf = 0.5 leading; rf = -0.866. v = 100 cos (vt + 15) V, i = 4 sin (vt - 15) A.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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10.2 Compute the power factor and the reactive factor
for the network inside the box in Fig. 10.6,
whose voltage and current are described in
Example 10.1.
Hint: Use to calculate the power and reactive
factors.
Answer: pf = 0.5 leading; rf = -0.866.

v = 100 cos (vt + 15) V,

i = 4 sin (vt - 15) A.

 

Example 10.1 Calculating Average and Reactive Power a) Calculate the average power and the reactive power at the terminals of the network shown in Fig. 10.6 if V = 100 cos (wt + 15°) V, i 4 sin (wt 15°) A. b) State whether the network inside the box is absorbing or delivering average power. c) State whether the network inside the box is absorbing or supplying magnetizing vars. + }! Figure 10.6 ▲ A pair of terminals used for calculating power.
Transcribed Image Text:Example 10.1 Calculating Average and Reactive Power a) Calculate the average power and the reactive power at the terminals of the network shown in Fig. 10.6 if V = 100 cos (wt + 15°) V, i 4 sin (wt 15°) A. b) State whether the network inside the box is absorbing or delivering average power. c) State whether the network inside the box is absorbing or supplying magnetizing vars. + }! Figure 10.6 ▲ A pair of terminals used for calculating power.
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