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As fire is produced by rubbing two stones which produces friction which results in fire being produced so can the same thing can be done of train wheels & railway tracks. As trains run at considerable speed they generate friction which can be converted into elctricity. Specially when we are facing a lot of shortage. It can be done in areas where there is more traffic so that the production can be consistent, specially in areas like delhi & mumbai including the metro & mumbai locals.
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i have one idea that if we keep dynamos to the wheels of train then due to friction between the rotating wheels and the wheel of dynamo the shraft get rotated and that produces electricity
like the same way used prevously in cycles front light is fixed and that light is connected to a dynamo which is fixed at the back wheel if the back wheel rotates then the shraft of dynamo also rotates due to fricton between them but there is a problem in case of trains due to friction between the train wheels and the dynamo the speed of train may decrease the power we are getting may b equals to the power used to speed up the train which slows due to friction between them ...out of those two if the power we are getting is more then it is useful if no its not useful... i dont know which one is greater .....can any one can help that
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