What are concentric cylinders?
INTRODUCTION. Concentric cylinders are widely employed to measure shear viscosities of “complex liquids,” i.e., liquids whose microstructures require more than microseconds, and typi- cally milliseconds or longer, to equilibrate locally within a flow.
What is concentric cylinder viscometer?
7.6. The coaxial cylinder viscometer is a popular rotational device for measuring rheological properties. As shown in Figure 7.10, the instrument is designed to shear fluid located in the annulus between two concentric cylinders, one of which is held stationary while the other rotates.
What is a concentric sphere?
(kŏn-sen’trik) Having a common center; said of two or more circles or spheres having a common center.
What is the formula of cylindrical capacitor?
Capacitance C of a capacitor is defined as the magnitude of the charge Q on the positive plate by the magnitude of the potential difference V between the plates. Therefore, $C=\dfrac{Q}{V}$. A cylindrical capacitor of length L consists of two cylinders of radii ${{R}_{1}}$ and ${{R}_{2}}$.
What are two concentric circles?
Concentric Circles Meaning In other words, it is defined as two or more circles that have the same centre point. The region between two concentric circles are of different radii is known as an annulus.
What is concentric capacitor?
A cylindrical capacitor consists of a hollow or a solid cylindrical conductor surrounded by another concentric hollow spherical cylinder. The capacitance of a cylindrical capacitor can be derived as: By Gauss law charge enclosed by gaussian cylinder of radius r and length L is. q=ϵoEA.
Why do we use cylindrical capacitors?
The capacitor is used to store large amounts of electric current in a small space. The cylindrical capacitor includes a hollow or a solid cylindrical conductor surrounded by the concentric hollow spherical cylinder.
What is an example of a concentric circle?
Concentric Circle Examples In Real Life It has two concentric circles joined by the spokes. Many of us have played darts. A dartboard also has concentric circles. The circles in the dartboard are drawn around a common center, that is, the bull’s eye.
What is the capacitance of two concentric spheres?
C=R−R4πϵRR.
Where are cylindrical capacitor used?
The cylindrical capacitor includes a hollow or a solid cylindrical conductor surrounded by the concentric hollow spherical cylinder. Capacitors are widely used in electric motors, flour mills, electric juicers and other electrical instruments.