A wattmeter is an electrical measuring instrument that measures active (or real) power in an electric circuit. It measures the value of electric power in watts, kW, MW, etc. Based on the principle and construction, the wattmeters are classified into two major types as − Dynamometer type wattmeter Induction ... Read More

A capacitor is a circuit component which has ability to store electrical energy in the form of electrostatic field. A capacitor consists of an assembly of two parallel plates that are separated by an insulating material called dielectric. When a voltage is applied to the capacitor, the dielectric material between ... Read More

Any electric circuit element or device has terminals for making connection in the circuit. These terminals of the element are also called electrodes of the element. The electrodes are classified in two types namely anode and cathode. This article is meant for explaining the difference between anode and cathode. But, ... Read More

Both alternator and generator are types of electromechanical energy conversion devices that convert mechanical energy into electrical energy, however there are several differences in the way they operate. This article will help you understand the major differences between an alternator and a generator. Let's start with a basic overview ... Read More

A circuit breaker is an electrical switching device that can open or close an electric circuit either normally or in case of fault. Therefore, a circuit breaker is one of the major component of an electrical power system or wiring system. A circuit breaker is usually equipped with a control ... Read More

A circuit breaker is an electrical switching device that can open or close an electric circuit either normally or in case of fault. Therefore, a circuit breaker is one of the major component of an electrical power system or wiring system. A circuit breaker is usually equipped with a control ... Read More

In electrical machines and instruments, an excitation system is the one which receives electrical energy to produce the working magnetic flux. The excitation system is the crucial component every electromechanical energy conversion device such as electric motor. Depending upon the number of input supplies, any electromechanical energy conversion system can ... Read More

Both turbocharger and supercharger are used to increase the pressure of atmospheric air before sending it to the engine cylinder. The compressed air increases the amount of fuel to enter into the engine cylinder for combustion, which in turn increases the power of the engine.Basically both turbocharger and supercharger perform ... Read More

Sensors and transducers are extensively used in the electrical and electronic instruments to measure different physical quantities. However, there are many differences between a sensor and a transducer that we will discuss in this article. But, before getting into the differences, let's get an overview of what sensors and transducers ... Read More

A cell is an active circuit component that supplies electrical energy to the circuit. A cell stores the energy in the form of chemical energy and converts it into electrical energy when the load is connected across its terminals. Depending on the ability to recharge, the cells are classified into ... Read More