Three insulating materials with breakdown strength 250 kV/cm, 200 kV/cm, 150 kV/cm and permittivities of 2.5, 3.0 and 3.5 are used in a single core cable. If the factor of safety for the materials is 5, the location of the materials with respect to the core of the cable will be

Three insulating materials with breakdown strength 250 kV/cm, 200 kV/c

1.	Three insulating materials with breakdown strength 250 kV/cm, 200 kV/cm, 150 kV/cm and permittivities of 2.5, 3.0 and 3.5 are used in a single core cable. If the factor of safety for the materials is 5, the location of the materials with respect to the core of the cable will be
A.	2.5, 3.0, 3.5
B.	3.0, 2.5, 3.5
C.	3.5, 3.0, 2.5
D.	3.5, 2.5, 3.0
Answer» B. 3.0, 2.5, 3.5