The cross section area and length of a cylindrical conductor are A and l respectively is connected with a voltage source V 0 . The conductivity varies as, σ = 
where x (0 < x < l) is the distance along the axis of the cylinder from one of its end as shown in the figure. Choose the correct option:
A
The electric resistance of cylinder along its axis is 
B
The electric current in the wire will be 
C
The current density in the wire will be 
D
The electric field in the wire at x in cylinder will be 
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(a, c, d)
dR = 
, R = 
= 
I = 
J = 
J = σ E
E = 
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