#### QS...The wire working on a railway signal is 5mm in diameter and 300m long. If the movement. at the signal end is to be 25cm, make calculations for the movement which must be given to the end of the wire at the signal box. Assume a pull of 2500N on the wire and take modulus. of elasticity for the wire material as 2 * 10 ^ 5 N / mm ^ 2..The wire working on a railway signal is 5mm in diameter and 300m long. If the movement. at the signal end is to be 25cm, make calculations for the movement which must be given to the end of the wire at the signal box. Assume a pull of 2500N on the wire and take modulus. of elasticity for the wire material as 2 * 10 ^ 5 N / mm ^ 2