In a test by Murray loop for ground fault on 500 m of cable having a resistance of 1.6 / km, the faulty cable is looped with the sound cable of some length and area of cross section. If the ratio of the other two arms of the testing network at balance is 3:1, what is the distance of fault from the testing end of cables?

In a test by Murray loop for ground fault on 500 m of cable having a r

1.	In a test by Murray loop for ground fault on 500 m of cable having a resistance of 1.6 / km, the faulty cable is looped with the sound cable of some length and area of cross section. If the ratio of the other two arms of the testing network at balance is 3:1, what is the distance of fault from the testing end of cables?
A.	100 m
B.	200 m
C.	250 m
D.	300 m
Answer» D. 300 m

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