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Three transformers having identical dimensions but with core of iron, aluminium and wood are wound with same number of turns and have same supply.Then choose the order for hysteresis losses.
- a)wood > aluminium > iron
- b)aluminium > iron > wood
- c)iron > wood > aluminium
- d)iron > aluminium > wood
Correct answer is option 'D'. Can you explain this answer?
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Three transformers having identical dimensions but with core of iron, ...
Explanation:
1. Hysteresis losses in transformers:
Hysteresis losses in transformers occur due to the repeated magnetization and demagnetization of the core material. This results in energy being lost in the form of heat.
2. Core materials:
- Iron: Iron has high magnetic permeability, making it a commonly used material for transformer cores.
- Aluminium: Aluminium has lower magnetic permeability compared to iron, leading to higher hysteresis losses.
- Wood: Wood has the lowest magnetic permeability among the three materials, resulting in the highest hysteresis losses.
3. Order of hysteresis losses:
- Iron: Iron has the lowest hysteresis losses among the three materials due to its high magnetic permeability.
- Aluminium: Aluminium has higher hysteresis losses compared to iron due to its lower magnetic permeability.
- Wood: Wood has the highest hysteresis losses due to its extremely low magnetic permeability.
Therefore, the correct order for hysteresis losses in transformers with cores made of iron, aluminium, and wood wound with the same number of turns and supplied with the same voltage is:
iron > aluminium > wood
1. Hysteresis losses in transformers:
Hysteresis losses in transformers occur due to the repeated magnetization and demagnetization of the core material. This results in energy being lost in the form of heat.
2. Core materials:
- Iron: Iron has high magnetic permeability, making it a commonly used material for transformer cores.
- Aluminium: Aluminium has lower magnetic permeability compared to iron, leading to higher hysteresis losses.
- Wood: Wood has the lowest magnetic permeability among the three materials, resulting in the highest hysteresis losses.
3. Order of hysteresis losses:
- Iron: Iron has the lowest hysteresis losses among the three materials due to its high magnetic permeability.
- Aluminium: Aluminium has higher hysteresis losses compared to iron due to its lower magnetic permeability.
- Wood: Wood has the highest hysteresis losses due to its extremely low magnetic permeability.
Therefore, the correct order for hysteresis losses in transformers with cores made of iron, aluminium, and wood wound with the same number of turns and supplied with the same voltage is:
iron > aluminium > wood
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Community Answer
Three transformers having identical dimensions but with core of iron, ...
- Hysteresis losses in a transformer are primarily caused by the magnetic properties of the core material. Different core materials have varying levels of hysteresis losses.
- Iron has a higher hysteresis loss compared to aluminium, and aluminium has a higher hysteresis loss compared to wood. This is because the magnetic properties of iron allow for greater energy losses due to hysteresis.
- Therefore, the correct answer is: D: iron > aluminium > wood.
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Three transformers having identical dimensions but with core of iron, aluminium and wood are wound with same number of turns and have same supply.Then choose the order for hysteresis losses.a)wood > aluminium > ironb)aluminium > iron > woodc)iron > wood > aluminiumd)iron > aluminium > woodCorrect answer is option 'D'. Can you explain this answer?
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