A DC 2-wire system with mid-point earthed having cross-sectional area – McqOptions

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1.	A DC 2-wire system with mid-point earthed having cross-sectional area of each conductor be a and resistance R1 . If this is replaced by monopolar system, then saving of copper will be ______
A.
B.	b
C.	2
D.	4
Answer» B. b

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