Question

1) what are their uses ?
2) Does electricity have any role in their movement ?

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Answer 1

Answer:

A railway electrification system supplies electric power to railway trains and trams without an on-board prime mover or local fuel supply.

Electric railways use either electric locomotives (hauling passengers or freight in separate cars), electric multiple units (passenger cars with their own motors) or both. Electricity is typically generated in large and relatively efficient generating stations, transmitted to the railway network and distributed to the trains.

Explanation:

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