Situations where torque does no work

[quantumfoam]

I would like to know all the different situations where torque does no work. So far I only know that torque can do no work when it is balanced. Is there any other ways torque can do zero work?

 

[Simon Bridge]

You should be able to work that out from the definition of work and the definition of torque...

 

[quantumfoam]

Alright then.