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In a.c system, the skin effect_________.
- a)Reduces the effective area of conductor
- b)Increase resistance of the conductor
- c)Causes greater power loss
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
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In a.c system, the skin effect_________.a)Reduces the effective area ...
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Skin effect is the tendency of an alternating electric current (AC) to become distributed within a conductor such that the current density is largest near the surface of the conductor, and decreases with greater depths in the conductor.
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In a.c system, the skin effect_________.a)Reduces the effective area ...
The skin effect in an AC system causes several effects on the conductors used in the system. Here are the key points to understand about the skin effect:
- Reduces the effective area of conductor: The skin effect causes the current in an AC system to flow mainly on the outer surface of a conductor rather than uniformly across the entire cross-section. This results in a reduced effective area of the conductor for carrying current.
- Increase resistance of the conductor: As the current tends to concentrate on the outer surface of the conductor due to the skin effect, the effective cross-sectional area for current flow decreases. This, in turn, increases the resistance of the conductor, leading to higher losses in the form of heat.
- Causes greater power loss: The increased resistance due to the skin effect results in higher power losses in the form of heat. This can lead to inefficiencies in the AC system and reduce the overall effectiveness of power transmission.
- All of the above: Considering the combined effects of reduced effective area of conductor, increased resistance, and greater power loss, it is clear that the skin effect impacts various aspects of an AC system. Therefore, all the statements mentioned in the options are true when it comes to the skin effect in an AC system.
In conclusion, the skin effect is an important phenomenon to consider in AC systems as it can affect the performance and efficiency of the system. Understanding how the skin effect influences conductors can help in designing and optimizing AC systems for better operation.
- Reduces the effective area of conductor: The skin effect causes the current in an AC system to flow mainly on the outer surface of a conductor rather than uniformly across the entire cross-section. This results in a reduced effective area of the conductor for carrying current.
- Increase resistance of the conductor: As the current tends to concentrate on the outer surface of the conductor due to the skin effect, the effective cross-sectional area for current flow decreases. This, in turn, increases the resistance of the conductor, leading to higher losses in the form of heat.
- Causes greater power loss: The increased resistance due to the skin effect results in higher power losses in the form of heat. This can lead to inefficiencies in the AC system and reduce the overall effectiveness of power transmission.
- All of the above: Considering the combined effects of reduced effective area of conductor, increased resistance, and greater power loss, it is clear that the skin effect impacts various aspects of an AC system. Therefore, all the statements mentioned in the options are true when it comes to the skin effect in an AC system.
In conclusion, the skin effect is an important phenomenon to consider in AC systems as it can affect the performance and efficiency of the system. Understanding how the skin effect influences conductors can help in designing and optimizing AC systems for better operation.
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In a.c system, the skin effect_________.a)Reduces the effective area of conductorb)Increase resistance of the conductorc)Causes greater power lossd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?
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