Electronics and Communication Engineering - Signals and Systems - Discussion

Discussion Forum : Signals and Systems - Section 4 (Q.No. 12)
12.
An ac network has a power factor of 0.8 lagging for fundamental frequency. If the applied voltage contains thrid and fifth harmonics, the overall power factor will be
more than 0.8 lagging
0.8 lagging
less than 0.8 lagging
0.8 lagging or less
Answer: Option
Explanation:

As frequency increases, XL decreases and power factor becomes worse.

Discussion:
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