A two wire DC distributor AB, 1000 meter long, is supplied from both ends, 240 V at A and 242 V at B. There is a concentrated load of 200 A at a distance of 400 meter from A and a uniformly load 1.0 A/m between the midpoint and end B. 

Determine (i) the current fed at points A and B 

(ii) The point of minimum potential 

(iii) Voltage and this point. Consider cable resistance as 0.005 ohm per 1000 meter each core