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The electric intensity E , current density j and specific resistance k are related to each other by the relation

A. E=jlk
B. E=jk
C. E=klj
D. k=jE

User JFlox
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7.9k points

1 Answer

2 votes

Final answer:

The correct relationship between electric intensity (E), current density (j), and specific resistance or resistivity (ρ) is j = E/ρ, which follows from Ohm's Law. None of the given options (A, B, C, D) correctly express this relationship. If we correct option k to ρ, the relationship should be j = E/ρ.

Step-by-step explanation:

The relation among electric intensity E, current density j, and specific resistance which is also known as resistivity ρ, is given by the equation j = E/ρ. This relationship can be derived from Ohm's Law which states that current is directly proportional to voltage and inversely proportional to resistance. The electric field (E) in a material with resistivity (ρ) will produce a current density (j), and they are related such that the current density is directly proportional to the electric field and inversely proportional to the resistivity.

Given the options:

A. E=jlk

B. E=jk

C. E=klj

D. k=jE

Option B is incorrect because it does not take into account resistivity. Option C is incorrect because the letters are out of order and resistivity should be represented as ρ not k. Option D suggests that resistivity is the product of current density and electric field, which is not true. Therefore, the correct option is not listed, but if we replace k with ρ, the correct relationship would be

j = E/ρ

, which is not directly given in any of the options provided.

User Fante
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8.2k points