2. A 2-wire d.c. distributor AB is 300 metres long. The end A is fed at 205 V and end B at 200 V. The distributor is uniformly loaded at 0-15 A/metre length and has concentrated loads of 50 A, 60 A and 40 A at points distant 75, 175, 225 m respectively from the end A. The resistance of each conductor is 0-15 £2 per kilometre. Calculate: (1) the point of minimum potential (i) currents fed at ends A and B [() 175 m from A (i) I₁ = 150 A; I = 45 A] 3. A d.c. 2-wire distributor AB is 450 m long and is fed at both ends at 250 V. The distributor is loaded as shown in Fig. 13.35. The resistance of each conductor is 0.05 $2 per km. Find the point of minimum potential and its potential. [261-74 m from A; 247-35 V] 250 V A 60 m- C D E 1.5A|m 1000000000000 40 m 100 m- -250 m- + B 250 V