# Physics

### Application, Working Principles and Uses of Potentiometer

Pointer instruments are useless for very accurate measurements: the best of them have an intrinsic error of about 1 percent of full scale. Where greater…

### Laboratory and Industrial Uses of Multimeter and Voltmeter

A multimeter instrument is one which is adapted for measuring both current and voltage. It has a shunt R as shown, and a series of…

### How to Convert Milliammeter Into Voltmeter and Ammeter

Ohm’s law enables us to use a milliammeter as a voltmeter. Let us suppose that we have a moving – coil instrument which requires 5…

### Definition of Graham’s Law and Explanations of Thermal Agitations

What are Thermal Agitations? When a gas passes through a porous plug, a cotton-wool wad, for example, it is said to diffuse’. In that it…

### Application and Uses of Bunsen’s Ice Calorimeter

The Bunsen’s ice calorimeter is a device for measuring a quality of heat by using it to melt ice. When ice turns to water, it…

### Calorimetry and the Application of Newton’s Law of Cooling

Newton’s Law of Cooling: Newton was the first person to investigate the heat lost by a body in air. He found that the rate of…

### Applications of Ostwald Viscometer and Stoke’s Law of Terminal Velocity

An Ostwald Viscometer, which contains a vertical capillary tube T, is widely use for comparing the viscosities of two liquids. The liquid is introduced at…

### Turbulent Motion and Explanations by Poiseuille’s Formula

TURBULENT MOTION Poiseuille’s Formula holds as long as the velocity of each layer of the…

### What is Viscosity? Application of Viscosity to Fluid Mechanics

If we move through a pool of water we experience a resistance to our motion. This shows that there is a frictional force in liquids….

### Applications of the theory of Solid, Static and Kinetic Friction

Static Friction When a person…