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The 60 Hz ac source of a series circuit has a voltage amplitude of 120 V. The capacitive ...

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The 60 Hz ac source of a series circuit has a voltage amplitude of 120 V. The capacitive ...

Figure 22.1e

The 60 Hz ac source of a series circuit has a voltage amplitude of 120 V. The capacitive and inductive reactances are

and

respectively. The resistance is

In Figure 22.1e, the resistance is changed from its original value so that the power factor is now 0.80. The original values of capacitance, inductance, and frequency remain unchanged. The new resistance is closest to:

• 670 Ω

• 750 Ω

• 500 Ω

• 420 Ω

• 600 Ω

Textbook

College Physics

Edition: 10^th

Authors: Young, Adams, Chastain

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