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Electronics and Communication Engineering (ECE) : Electromagnetic Field Theory - Quiz(MCQ)
Find the conductivity of a material with conduction current density 100 units and electric field of 4 units.
A)
25
B)
400
C)
1600
D)
1800

Correct Answer : Option (A) :   25


Explanation : The conduction current density is given by, Jc = σE. To get conductivity, σ = J/E = 100/4 = 25 units.

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