Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > In free space, which of the following will be...
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In free space, which of the following will be zero?
- a)Permittivity
- b)Permeability
- c)Conductivity
- d)Resistivity
Correct answer is option 'C'. Can you explain this answer?
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In free space, which of the following will be zero?a)Permittivityb)Per...
Answer: c
Explanation: In free space, ε = ε0 and μ = μ0. The relative permittivity and permeability will be unity. Since the free space will contain no charges in it, the conductivity will be zero.
Explanation: In free space, ε = ε0 and μ = μ0. The relative permittivity and permeability will be unity. Since the free space will contain no charges in it, the conductivity will be zero.
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In free space, which of the following will be zero?a)Permittivityb)Per...
Conductivity in free space:
Conductivity is the measure of a material's ability to conduct electric current. In free space, there are no free charges to conduct electricity; therefore, conductivity is zero.
Explanation:
- In free space, there are no ions or free electrons to carry electric current.
- Conductivity is directly related to the number of free charges available to carry current.
- Since free space does not contain any free charges, the conductivity is zero.
- This is why in free space, conductivity is typically considered to be zero.
Permittivity, Permeability, and Resistivity:
- Permittivity and permeability are properties of the material in which electromagnetic waves propagate.
- Permittivity is a measure of a material's ability to store electrical energy in an electric field.
- Permeability is a measure of a material's ability to support the formation of magnetic fields.
- Resistivity is the opposite of conductivity and is a measure of a material's ability to resist the flow of electric current.
Conclusion:
- In free space, conductivity is zero because there are no free charges to carry electric current.
- Permittivity, permeability, and resistivity are properties of materials and are not zero in free space.
Conductivity is the measure of a material's ability to conduct electric current. In free space, there are no free charges to conduct electricity; therefore, conductivity is zero.
Explanation:
- In free space, there are no ions or free electrons to carry electric current.
- Conductivity is directly related to the number of free charges available to carry current.
- Since free space does not contain any free charges, the conductivity is zero.
- This is why in free space, conductivity is typically considered to be zero.
Permittivity, Permeability, and Resistivity:
- Permittivity and permeability are properties of the material in which electromagnetic waves propagate.
- Permittivity is a measure of a material's ability to store electrical energy in an electric field.
- Permeability is a measure of a material's ability to support the formation of magnetic fields.
- Resistivity is the opposite of conductivity and is a measure of a material's ability to resist the flow of electric current.
Conclusion:
- In free space, conductivity is zero because there are no free charges to carry electric current.
- Permittivity, permeability, and resistivity are properties of materials and are not zero in free space.
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In free space, which of the following will be zero?a)Permittivityb)Permeabilityc)Conductivityd)ResistivityCorrect answer is option 'C'. Can you explain this answer?
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