Question 549Electricity/Electronics - Assistant Engineer70% to pass
As shown in figure "D" of the digital power meter shown in the illustration, what type of single phase load is under test for power measurement? Illustration EL-0256
AI Explanation
The correct answer is B) an inductive-resistive load.
This is the correct answer because the power meter in the illustration, as shown in figure "D", is displaying the power factor of the load under test. A power factor less than 1.0 indicates the presence of an inductive or capacitive component in the load, rather than a purely resistive load.
The other options are incorrect because: A) a resistive-capacitive load would have a power factor greater than 1.0, which is not the case here; C) a purely inductive load would have a power factor close to 0, which is also not the case; and D) a purely resistive load would have a power factor of 1.0, which is different from the value shown in the illustration.
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