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The conduction current density, (J), can be found using Ohm’s law for materials, which can be expressed as:
[J = sigma E]
Where:
– (J) is the conduction current density.
– (sigma) is the conductivity of the material.
– (E) is the electric field.
Given that the conductivity, (sigma), is 500 units and the electric field, (E), is 2 units:
[J = 500 times 2]
[J = 1000 , text{units}]
Therefore, the conduction current density is 1000 units.
Answer: c
Explanation: The conduction current density is given by, J = σE
J = 500 X 2 = 1000 units.