Which of the following is the property that describes the amount of volume that decreases when pressure is applied to a fluid? O shear stress
O compressibility
O viscosity
O elasticity

Compressibility.

Explanation:

The compressibility of a fluid can be defined as a measure of the change in volume (density) with respect to the amount of pressure applied to the fluid. Thus, as the pressure of a compressible fluid increases, both its viscosity and density increases.

Some examples of compressible fluids are vapors, gases, air etc.

Hence, compressibility is the property that describes the amount of volume that decreases when pressure is applied to a fluid.

Additionally, the compressibility of fluids plays a significant role in the field of science such as in aerodynamics, fluid mechanics, thermodynamics etc.

The inductance of the inductor is 0.051H

Explanation:

From Ohm's law;

  V = IR .................. 1

The inductor has its internal resistance referred to as the inductive reactance, X, which is the resistance to the flow of current through the inductor.

From equation 1;

V = IX

X = ................ 2

Given that; V = 240V, f = 50Hz, = , I = 15A, so that;

From equation 2,

X=

    = 16Ω

To determine the inductance of the inductor,

X = 2fL

L =

  =

 = 0.05091

The inductance of the inductor is 0.051H.