## Power in AC Circuit – Active Power, Reactive Power, Apparent Power

Updated on 15-Nov-2022 05:47:38
In electrical and electronic circuits, the power is one of the most significant quantities used to analyze the circuits for practical applications. The electrical power defined as the time rate of expanding or absorbing energy in a circuit, i.e., $$\mathrm{Power, P=\frac{Energy \;expanded\; or\; absorbed (𝑊)}{Time(𝑡)}}.....(1)$$ This article is meant for explaining power relations in AC circuits. Where, an AC circuit is one which is excited from a source alternating voltage. Instantaneous Power in an AC Circuit The value of electric power in an AC circuit measured at a certain instant of time is known as instantaneous power. It is generally ... Read More

## Difference between Windmill and Wind Turbine

Updated on 22-Sep-2022 08:43:06
The energy of flowing wind is a versatile source of renewable and sustainable energy. In practice, people use the terms Windmill and Wind Turbine interchangeably, but these two terms are different from each other. Windmill and wind turbines are different from each other in structure and application. Windmill is a technology in which energy of wind is used to mill grains, moving water, driving machines, etc. On the other hand, a wind turbine converts the wind energy into electrical energy by driving a generator connected to it. In this article, we will discuss all the noticeable differences ... Read More

## Difference between Voltage Drop and Potential Difference

Updated on 22-Sep-2022 08:41:49
While analyzing electric circuits, we come across the electrical quantities "voltage drop" and "potential difference" that appear to be the same at first sight because both are measured in Volts. In this article, we will highlight how Voltage Drop is different from Potential Difference in many aspects. Before discussing the differences between Voltage Drop and Potential Difference, let's start with some basics so that it becomes easy to understand the differences between them. What is Voltage Drop? When an electric current flows through a circuit and there is a drop or decrease in the electric potential of the charge ... Read More

## Difference between Valance Band and Conduction Band

Updated on 22-Sep-2022 08:36:20
In atomic structure, valance band and conduction band are the terms used to represent the energy levels of the subatomic particles, usually electrons. While analyzing the atomic structures, we found that the valance band and conduction band are separated by a certain amount of energy depending on the type of material. For example, in metals, these are touching each other; in semi-conductors, these are separated by a moderate amount of energy; and in case of insulators, this separation is very large. The energy gap between the valance band and the conduction band is known as forbidden energy gap. The diagram ... Read More

## Difference between Transformer and Amplifier

Updated on 22-Sep-2022 08:35:08
In electrical and electronics engineering, transformers and amplifiers play a crucial role in several circuits. At first sight, the function of a transformer and an amplifier may seem similar, that is, increasing the level of voltage. But, a transformer can reduce the level of voltage as well, whereas an amplifier cannot. In this article, we will discuss all the key differences between a transformer and an amplifier by considering different parameters such as basic definition, circuit components, primary function, applications, etc. But before that, let's check some of the basics of transformers and amplifiers so that it becomes easier ... Read More

## Difference between Stator and Rotor in Rotating Electric Machines

Updated on 22-Sep-2022 08:33:44
A rotating electric machine is the one which has moving parts. Every rotating electrical machine such as motor and generator consists of two major parts namely stator and rotor. As their name implies, the stator is that part of the machine which is stationary or non-movable, whereas the rotor is the part which can move or rotate freely. This article is meant for explaining the differences between stator and rotor of an electrical machine. But before going into the comparison of stator and rotor we shall discuss what the stator and rotor are. What is Stator of Electrical Machine? ... Read More

## Difference between Static Relays and Electromagnetic Relays

Updated on 22-Sep-2022 08:31:48
In electrical and electronics engineering, a Relay is an electrically operated switch which is used to connect or disconnect two circuits. Since the operation of a Relay is governed by an electric control signal, hence it can be operated automatically. Basically, the relays are designed for switching of high power circuits by using low power electric signals. Depending on the technology used, the relays can be broadly classified into two types namely Electromagnetic Relays Static or Solid-State Relays In this article, we will highlight all the key differences between an electromagnetic relay and a solid state relay ... Read More

## Difference between Resistance and Reluctance

Updated on 22-Sep-2022 08:30:09
In electrical engineering, there are two important terms resistance and reluctance related to electromagnetic circuits such as motor, generator, transformer etc. Where, the resistance is the parameter of circuit which is regarded to electric current, whereas the reluctance is the parameter regarded to the magnetic flux in the circuit. In this article, we will highlight all the significant differences between resistance and reluctance by considering different parameters such as basic definition, unit, denotation, affected quantity, etc. Let's start with some basics of Resistance and Reluctance so that it becomes easy to understand the differences between them. What is Resistance? Resistance ... Read More

## Difference between Relay and PLC

Updated on 22-Sep-2022 08:28:22
Both relay and PLC are devices that are used in the electrical and electronic control systems for the automation of processes. A control system that is designed by using relays is known as relay logic control (RLC). Similarly, a control system that is designed by using a microcontroller and other solid state switching devices is known as programmable logic control (PLC). In this article, we will discuss all the major differences between relay and PLC by considering different parameters such as basic definition, components, function, memory, I/O, applications, etc. But before discussing the differences, let's start with ... Read More

## Difference between Photodiode and Phototransistor

Updated on 22-Sep-2022 08:25:14
Photodiodes and Phototransistors are both semiconductor electronic devices that convert optical energy into electrical energy. Therefore, due to their similar function, one may get confused between these two devices. Both photodiode and phototransistor sense the light from a source and generate an electric signal having the strength corresponding to intensity of the light. However, these two devices are quite different from each other in many aspects. In this article, we will highlight all the significant differences between photodiodes and phototransistors. Let's start with some basics so that it becomes easy to understand the differences between them. The one most ... Read More
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