Question

An infinite line charge of uniform electric charge density ???? lies along the axis of an electrically conducting
infinite cylindrical shell of radius R. At time t = 0, the space inside the cylinder is filled with a material of
permittivity ???? and electrical conductivity ????. The electrical conduction in the material follows Ohm’s law.
Which one of the following graphs best describes the subsequent variation of the magnitude of current
density j(t) at any point in the material?

Answer 1

Answer:

please mark as brainlist

Answer 2

Answer:

C

Explanation:

E' = lamda/2pieEr

J=sigmaE' = sigma×lamda/2pieEr

dq/dt = -J(A)

d(lamda l)/dt = -J(2pierl)

lamda = (lamda not)e^(-sigmat/E)

J = Joe^(-sigmat/E)

(E' : Electric field & E : epsilon)