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Calculate the conduction current density when the resistivity of a material with an electric field of 5 units is 4.5 units.
  • a)
    22.5
  • b)
    4.5/5
  • c)
    5/4.5
  • d)
    9.5
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Calculate the conduction current density when the resistivity of a mat...
Answer: c
Explanation: The conduction current density is the product of the conductivity and the electric field. The resistivity is the reciprocal of the conductivity. Thus the required formula is Jc = σ E = E/ρ = 5/4.5 units.
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Most Upvoted Answer
Calculate the conduction current density when the resistivity of a mat...
Calculating Conduction Current Density:
1. Given values:
- Resistivity (ρ) = 4.5 units
- Electric field (E) = 5 units
2. Formula for conduction current density (J):
J = σ * E
where σ is the conductivity of the material, which is the reciprocal of resistivity (σ = 1/ρ)
3. Calculating conductivity (σ):
σ = 1/ρ
σ = 1/4.5
σ = 0.2222 units
4. Substitute values into the formula:
J = 0.2222 * 5
J = 1.111 units
5. Final Answer:
The conduction current density when the resistivity of the material with an electric field of 5 units is 4.5 units is 1.111 units.
Therefore, the correct option is 5/4.5 (option C).
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Calculate the conduction current density when the resistivity of a material with an electric field of 5 units is 4.5 units.a)22.5b)4.5/5c)5/4.5d)9.5Correct answer is option 'C'. Can you explain this answer?
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