clutch is a mechanical assembly which is used to transfer torque between a driver shaft and driven shaft
torque convertor is a modified form of fluid coupling,which works simillar to clutch but with advantages like less viberations,less shocks and very small loss of energy
What is the practical difference Speed and Torque?
Answer
Practically!
speed is the measure of relative rate increase or decrease of distace between a fixed and moving body,
while torque is the cross product of angular speed and mass of a system,