Electric Traction
Main traction systems used in India are, those using

Diesel engine locomotives
Steam engine locomotives
All of the listed here
Electric locomotives

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Electric Traction
Coefficient of adhesion is

Equal in both AC. and D.C. traction
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

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