A very long line charge having a charge density λ is surrounded by a conducting cylindrical shell with inner radius ri = 4.05 cm and outer radius r0 = 7 cm as shown in the figure. System is in electrostatic equilibrium condition. What would be the electric potential difference ΔV = V(r = 1.47 cm)−V(r = 6.2 cm) ? Provide your answer in terms of λk with 2 significant figures.