Question

usually ,long spanners are preferred more than short spanners to unscrew a very tight and rusted nut.

Answer 1

Answer:

But if the spanner is 24 cm long then the distance is 37.7 cm. The longer the spanner the shorter the distance you have to move the farthest end of the wrench to turn the nut. ... A longer wrench provides more torque to overcome the resistance of the rusted nut/bolt.