Class 12

An electric circuit is made up of small distinctive elements to ensure the proper flow of electric current throughout a circuit. Therefore, several devices are used to maintain that smooth flow of electric current. One such device made up of resistive material that is used in an electric circuit is the resistor. The resistor is […]

A transformer is a device that distributes electric energy from one circuit to other circuits by stepping up or stepping down the voltage. Transformers are used for a broad range of applications, including lowering the voltage of traditional power circuits to run low-voltage devices like doorbells and toy electric trains and raising the voltage of

The device that converts energy from one form to another is known as a transducer. It can also be used to convert a non-electrical signal into an electrical signal. It produces an output in reaction to a specified input, which could be a physical quantity. Transducer Devices that transform energy from one form to another

The ripple factor is the ratio of the rms value of the rectified output’s ac component to the average value of the rectified output. It is represented by γ and is a dimensionless quantity. Its value is never higher than the value of being together.  Rectifier Rectifier circuits are the most common circuits used in

Introduction The history of refrigeration is known to have been introduced in the mid 1750s. The methods and techniques of developing a refrigerator were not done until the early 1800s. Mechanisms were just starting to roll out during that point of time and due to lack of advanced mechanisms the first ever working refrigerator rolled

Transformers are important electronic devices; they are used to supply an amount of electricity from one electric circuit to another; in this transaction, there are no changes in the frequency of the flowing electric charge. Windings, insulated materials, conservators, etc, are parts of a transformer. These parts play an essential role in the functions of

Introduction A potentiometer is a three-terminal resistor. One of the three terminals is variable, while the other two are fixed. It is an electric component used to evaluate unidentified voltages by comparing them to known voltages, which can be drawn from a cell or any other supply source. In other words, it is a device

New Technologies and Their Origin Different technologies that answer our greatest dilemmas have begun to emerge throughout human history. From the camera to NASA’s telescopes are examples of the development of technology using physics. Great inventions have been born out of the curiosity of people seeking to know more and solve great dilemmas. From science

This topic Physics, Technology and Society deals with the correlation of these three since they are interconnected. Physics, technology and society give rise to one another in various ways. Some concepts of physics are used to develop technology which hence affect society. A country’s growth, both in the field of technology and in the education

A galvanometer is an electrical device used to measure the small value of currents. The galvanometer has gone through numerous versions since its invention in the 1800s. Mirror galvanometers, Tangent galvanometers, and Astatic galvanometers are some types of galvanometers being used currently. But the moving coil galvanometer is more commonly used than all other galvanometers.