jangyasinniTeacher
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The conductivity ((sigma)) of a material can be found using the relation between the conduction current density ((J)), the electric field ((E)), and the conductivity itself. The relation is given by Ohm’s Law in its differential form:
[ J = sigma E ]
Given:
– (J = 100) units (Conduction current density)
– (E = 4) units (Electric field)
To find the conductivity ((sigma)), we rearrange the equation:
[ sigma = frac{J}{E} ]
Substituting the given values:
[ sigma = frac{100}{4} = 25 ]
Therefore, the conductivity of the material is 25 units.
a
Explanation: The conduction current density is given by, Jc = σE. To get conductivity, σ
= J/E = 100/4 = 25 units.
a) 25
Explanation: The conduction current density is given by, Jc = σE. To get conductivity, σ= J/E = 100/4 = 25 units.