# Stefan Boltzmann Law

Stefan Boltzmann Law What is Stefan Boltzmann Law? The Stefan – Boltzmann Law deals with the black body radiation. It states that the total energy radiated per unit surface area of a black body in unit time is directly proportional to the fourth power of the black body’s thermodynamics temperature. Formula to find the Stefan Read more about Stefan Boltzmann Law[…]

# Doppler Effect

Doppler Effect Doppler Effect refers to the change in wave frequency during the relative motion between a wave source and its observer. It was discovered by Christian Johann Doppler who described it as the process of increase or decrease of starlight that depends on the relative movement of the star.  What is Doppler Effect? The Read more about Doppler Effect[…]

# Characteristics of a Transistor

Characteristics of a Transistor A transistor is a semiconductor device which is used to switch or amplify electronic signals and electric power. It consists of semiconductor material mostly with at least three terminals for connection to an external circuit. Transistor characteristics are the plots which represent the relationships between the current and the voltages of a transistor Read more about Characteristics of a Transistor[…]

# Applications of Parallel Plate Capacitors

Applications of Parallel Plate Capacitors When capacitors are connected in parallel, the total capacitance is the sum of the individual capacitor’s capacitances. If two or more capacitors are connected in parallel, the overall effect is that of a single equivalent capacitor having the sum total of the plate areas of the individual capacitors. As we’ve Read more about Applications of Parallel Plate Capacitors[…]

# Critical Velocity

Critical Velocity What is Critical Velocity? Critical velocity is the speed and direction at which the flow of a liquid through a tube changes from smooth to turbulent. It is defined as the speed at which falling objects reaches when both gravity and air resistance are equalised on the object. The critical velocity is that Read more about Critical Velocity[…]

# Unit of Coefficient of Viscosity

Unit of Coefficient of Viscosity What is Coefficient of Viscosity? Coefficient of viscosity is defined for two parallel layers of liquid as the tangential force required to maintain a unit velocity gradients between these layers and also we can say that it is the ratio of shear stress to the velocity gradient of the fluid. Read more about Unit of Coefficient of Viscosity[…]

# Gaseous Mixture

Gaseous Mixture Gaseous Mixture is a mixture composed of gases. Mixture of gases are common in many applications. If a substance is in gaseous state and there are at least two different types of molecules in it, it’s a mixture. The most common example of a gas mixture is air. If two non-reactive gases are Read more about Gaseous Mixture[…]

# Electrical Analogy for Thermal Conduction

Electrical Analogy for Thermal Conduction Thermal Conductivity is defined as the quantity of heat (Q) transmitted through a unit thickness (l) in a direction normal to a surface of unit area due to a unit temperature gradient (ΔT) under steady state condition and when the heat transfer is dependent only on the temperature gradient. From Read more about Electrical Analogy for Thermal Conduction[…]

# Circuit Diagram and its Components

Circuit Diagram and its Components A circuit diagram can be defined as the graphical representation of an electrical circuit. An electrical circuit is a path or line through which an electrical current flow. The path may be closed, making it a loop. A closed circuit makes electrical current flow possible. It may also be an Read more about Circuit Diagram and its Components[…]

# Basic Properties of Electric Charge

Basic Properties of Electric Charge Electric charge is defined as the amount of energy or electrons passing from one body to another either by conduction, induction or other specific methods. There are two types of electric charges namely Positive Charge and Negative Charges.  Charges are present in almost everybody and those bodies which don’t have Read more about Basic Properties of Electric Charge[…]