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Low power factor is usually not due to
- a)Discharge lamps
- b)Incandescent lamps
- c)Arc lamps
- d)Induction furnaces
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Low power factor is usually not due toa)Discharge lampsb)Incandescent ...
Explanation:
Incandescent Lamps:
- Incandescent lamps have a power factor close to 1, which means they do not contribute to a low power factor.
- The resistance in the filament of the incandescent lamp helps to cancel out the inductive reactance, resulting in a near unity power factor.
Discharge Lamps:
- Discharge lamps, such as fluorescent and high-intensity discharge lamps, have inductive ballasts that can cause a low power factor.
- The inductive ballasts used to regulate the current in these lamps create a lagging power factor, leading to a lower overall power factor.
Arc Lamps:
- Arc lamps also have inductive characteristics that can result in a low power factor.
- The inductive reactance in the circuit of arc lamps causes the current to lag behind the voltage, leading to a lower power factor.
Induction Furnaces:
- Induction furnaces are known for having a low power factor due to the high inductive loads they create.
- The inductive nature of the furnace coils causes the current to lag, resulting in a lower power factor.
In conclusion, incandescent lamps do not contribute to a low power factor because of their near unity power factor. Other types of lamps and equipment, such as discharge lamps, arc lamps, and induction furnaces, can lead to a low power factor due to their inductive characteristics.
Incandescent Lamps:
- Incandescent lamps have a power factor close to 1, which means they do not contribute to a low power factor.
- The resistance in the filament of the incandescent lamp helps to cancel out the inductive reactance, resulting in a near unity power factor.
Discharge Lamps:
- Discharge lamps, such as fluorescent and high-intensity discharge lamps, have inductive ballasts that can cause a low power factor.
- The inductive ballasts used to regulate the current in these lamps create a lagging power factor, leading to a lower overall power factor.
Arc Lamps:
- Arc lamps also have inductive characteristics that can result in a low power factor.
- The inductive reactance in the circuit of arc lamps causes the current to lag behind the voltage, leading to a lower power factor.
Induction Furnaces:
- Induction furnaces are known for having a low power factor due to the high inductive loads they create.
- The inductive nature of the furnace coils causes the current to lag, resulting in a lower power factor.
In conclusion, incandescent lamps do not contribute to a low power factor because of their near unity power factor. Other types of lamps and equipment, such as discharge lamps, arc lamps, and induction furnaces, can lead to a low power factor due to their inductive characteristics.
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Low power factor is usually not due toa)Discharge lampsb)Incandescent ...
Filament lamp
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Low power factor is usually not due toa)Discharge lampsb)Incandescent lampsc)Arc lampsd)Induction furnacesCorrect answer is option 'B'. Can you explain this answer?
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