A cable containing two cylindrical shape Conductors are in Figure below with r1 = 0.2 cm and r2 = 1.2 cm filled with dielectric of εr = 1.5, if ρ1 = 2nC/cm in the inner conductor and the Outer conductor is connected to ground.
a. Calculate the Surface charge density in both conductors.
b. E and V in all the regions
c. The Capacitance per unit length between two conductors Bonus;
d. If a 25 μC charge point is located 1 meter away from the cable. What are the changes in voltage and electric field of the inner conductor?