The maximum load a wire can withstand without breaking, when its length is reduced to half of its original length, will

For the wire to break, we need to apply a minimum force called breaking force on the wire. This breaking force is dependent on the area of cross-section of the wire and the breaking stress of the wire which is characteristic of the material and does not depend on the dimensions (length and thickness). Thus, in this case, since only the length is being altered, no change will happen to the maximum load the wire can withstand.