A 2 wire dc street mains AB, 600 m long is fed from both ends at 220 V. Loads of 20 A, 40 A, 50 A and 30 A are tapped at distances 100m, 250m, 400m and 500m from the end A. If the area of cross section of distributor is 1 cm, what will be the minimum consumer voltage? If ? = 1.7 * 10 cm.

A 2 wire dc street mains AB, 600 m long is fed from both ends at 220 V

1.	A 2 wire dc street mains AB, 600 m long is fed from both ends at 220 V. Loads of 20 A, 40 A, 50 A and 30 A are tapped at distances 100m, 250m, 400m and 500m from the end A. If the area of cross section of distributor is 1 cm, what will be the minimum consumer voltage? If ? = 1.7 * 10 cm.
A.	220 V
B.	215.69 V
C.	218.36 V
D.	222.58 V
Answer» C. 218.36 V

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A 2 wire dc street mains AB, 600 m long is fed from both ends at 220 V. Loads of 20 A, 40 A, 50 A and 30 A are tapped at distances 100m, 250m, 400m and 500m from the end A. If the area of cross section of distributor is 1 cm, what will be the minimum consumer voltage? If ? = 1.7 * 10 cm.

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