Aflat plate of area 0.05 m^(2)is separated from another large plate at rost by a liquid layer of uniform thickness 1mu m. The tangential force needed to move the smaller plate with a constant velocity of 10 cm s ^(-1)i s 20 N. Calculate the coefficent of viscosity of the liquid.

Aflat plate of area 0.05 m^(2)is separated from another large plate at

1.	Aflat plate of area 0.05 m^(2)is separated from another large plate at rost by a liquid layer of uniform thickness 1mu m. The tangential force needed to move the smaller plate with a constant velocity of 10 cm s ^(-1)i s 20 N. Calculate the coefficent of viscosity of the liquid.
Answer» Solution :` ETA = F dx//A dv = 20 xx 10 ^(-6)//0.05 xx 0.1`