Electric Traction
Battery operated trucks are used in

Power stations
Narrow gauge traction
Factories for material transportation
Steel mills

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Electric Traction
Coefficient of adhesion is

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