Electric Traction
When a bogie negotiates a curve, reduction in adhesion occurs resulting in sliding. Thus sliding is acute when

Both of the listed here
Degree of curvature is more
None of the listed here
Wheel base of axles is more

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Electric Traction
Coefficient of adhesion is

High in case of D.C. traction than in the case of AC. traction
All of the listed here
Low in case of D.C. traction than in the case of AC. traction
Equal in both AC. and D.C. traction

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