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How to Build Simple LED circuit | Calculate current limit Resistor

Circuit Design for LEDs. Discover how to create LED circuits. How to determine resistor size, how to protect LEDs, how long a battery will power a circuit, how to calculate resistor power rating, how to connect LEDs, and more. These are light-emitting diodes or LEDs. When a current is sent through one, light is produced. However, if we surpass its voltage and current limits, it will be destroyed immediately. The interior of the LED contains a small wire that can only withstand a particular amount of current. Assume you have a 3 volt supply and wish to attach a single red LED to it. What kind of resistor do we require? We know that this wire is 3 volts and that this wire is 0 volts. Because the led has a voltage loss of about 2 volts, our resistor must eliminate the remaining 3 volts. To get 1 volt, subtract 2 volts. Because the led requires around 20 milliamps of current, 1 volt divided by 0.02 amps equals 50 ohms of resistance. For this computation, make sure you convert your m...

What Is a Multimeter and How Do I Use It

What Is a Multimeter Multimeters are electrical or electronics test instruments that are used to determine multiple values such as voltage, current, resistance, diode test, continuity test, and many more. Every repairman should be familiar with a multimeter, which has multiple applications for checking electronic components and circuits. Today, we'll go over three of the most fundamental multimeter features for evaluating continuity. Resistance and voltage Let's begin with a continuity test . Continuity Test A continuity test determines whether or not two objects are electrically linked. An electrical current can flow freely from one end to the other if something is continuous. If there is no continuity, this indicates that there is a break somewhere in the circuit. This might suggest anything from a blown fuse or a poor solder joint to a broken cable that prevents a continuity test from being performed. Begin by connecting your probes. The black probe is inserted into the n...

What is Miniature Circuit Breaker (MCB) and Work

Have you ever wondered why some of your appliances' switches are different from others, or why we have this box with cables running in and out? So, in this episode, we're going to address these concerns. Miniature circuit breakers, or MCBs, are the name given to these devices. They're used to guard against overload and short circuits, and they have separate mechanisms for each of the actions we'll look at. C 16 is printed on this MCB. As a result, this is a class C device with a 16-amp overload current. Let's open it up by removing the rivets. This is the input side of the equation. This is where the phase wire is linked. After that, there's a bimetallic strip. This strip is composed of two metals. When metals are heated, they expand, and the rate of expansion varies depending on the metal. When two different metals are heated together, one metal expands more than the other, causing them to bend. Passing a current through a conductor, as in an MCB, may create he...

What is an electric fuse | Fuse resistance | Functions

To avoid a short circuit or device failure, an electrical fuse is a low melting point copper or other metal wire that breaks due to heat-induced by Overcurrent or excessive load. The flow of electric current warms up the items through which it passes. Electric water heaters, light bulbs, and irons are just a few examples of electric gadgets that make use of this phenomenon. It does, however, have certain downsides. For example, if this equipment becomes overheated, it may become damaged or even catch fire! In reality, the undesirable high electric currents harm not only these gadgets, but all of the appliances in our home. Any gadget can only withstand a certain quantity of electric current. If the current surpasses that limit, the device's components heat up, perhaps resulting in a fire! Is there a way to prevent this from happening? An "electric fuse" is a device that is used to prevent this from happening. It comes in a variety of forms and sizes. This is how it usuall...

What is Electricity : Electricity explains for beginners

Simply, Electricity and charge flow is present. It might be the flow of positive charges or the flow of negative charges. That's a really short explanation. To grasp the principles of electricity, one must first concentrate on atoms. There are two kinds of charged particles in an atom. Protons are positive particles. Electrons are negative particles. Electrons are essential for understanding how electricity works. The electrons in an atom are not all permanently attached to the atom. The electrons in the atoms' outer orbits are referred to as valence electrons. A valence electron can depart the atom's orbit and become free. We can transfer the charge using free electrons. That's what electricity is all about. In terms of charges, The movement of electrical power or charge is referred to as Electricity . Electricity is both a fundamental component of nature and one of the most extensively used types of energy. We utilize electricity as a secondary energy source since i...

Resistors in Series and Parallel connection

We're going to learn about resistors Series and parallel today. Electrical resistance, as we all know, is the resistance to current passage in an electric circuit. The resistance of a resistor restricts the passage of electrons in a circuit. A conductor is a person who acts as a guide for other people. Assume that there is no opposition. When we provide a voltage differential to the conductor, the electrons begin to travel through it. A negative current flow is a moving electron flow. An ammeter may be used to determine the amount of current flowing. We have a very high current because there is no resistance in the conductor to slow down the electrons; they are moving at full speed. Consider another conductor, but this one is equipped with a resistor. Apply the same amount of voltage as when electrons initially started to flow. Electrons have a second choice: they must pass through the resistor. What is the current reading on the ammeter? Because the electron flow is limited by the...

Series and Parallel Combination of Inductors

Now we'll talk about inductor combinations in series and parallel, And in series inductors, two or more inductors are linked one after another in the same wire, and because they're connected in the same wire, the current through all of the inductors remains constant. As an example, Series and Parallel Combination of Inductors We have two inductors linked one after the other on the same wire in this circuit, hence the current across both inductors will remain constant. Let's imagine the current in this circuit is equal to I, and we know that the voltage across an inductor is equal to the inductor's inductance multiplied by the current rate of change through the inductor, which is defined by DT. Now we can calculate the voltage across our first inductor, which is equal to the inductance, L sub 1, multiplied by the time rate of change of current through the inductor, di by DT. The voltage across the second inductor will be equal to L 2 multiplied by di by DT. Now we'l...

What is an Inductor | Inductors Work | symbol

When an electric current travels through an inductor, it stores energy in the form of a magnetic field. It is sometimes referred to as a coil, chokes, or reactor. The inductor is also a passive electrical element An inductor is nothing more than a wire coil. It is often made out of a coil of conducting material, commonly insulated copper, wrapped around an iron core made of plastic or ferromagnetic material; consequently, it is known as an iron-core inductor. Inductors are measured in Henry is denoted by (L). Inside the coil of many inductors is a magnetic core composed of ferrite or iron, which is used to enhance the magnetic field and hence the inductance of the inductor. When an electric current running through an inductor or coil changes, the time-varying magnetic field creates an e.m.f (electromotive force) or voltage in it, according to Faraday's law of electromagnetic induction. The rate of change of the electric current flowing through an inductor is exactly proportional to...

What is a Positive Temperature Coefficient (PTC) | Positive Temperature Coefficient Thermistor

PTC is an initial for Positive Temperature Coefficient PTC thermistors are resistors with a positive temperature coefficient, meaning their resistance rises as the temperature rises. PTC thermistors are classified into two types depending on the materials used, the structure of the device, and the production method. Solicitors are the earliest type of PTC thermistors, and they employ silicon as the semiconducting material. Because of their linear feature, they are employed as PTC temperature sensors. The switching type PTC thermistor is the second category. The resistance-temperature curve of a switching type PTC thermistor is very nonlinear. When a switching type PTC thermistor is heated, the resistance initially decreases until a critical temperature is achieved. As the temperature rises above the critical point, the resistance rises substantially. This kind of PTC thermistor is commonly utilized in PTC heaters, sensors, and other applications. This second group includes polyme...

What is Light Emitting Diode (LED) Working, Advantages and Types of LED Explained

Today we will learn about the light-emitting diode , which is also commonly known as the LED. In many electronic devices, LEDs are commonly used. For example, today's LEDs are commonly used in smartphone displays as well as in-camera flashlights. Similarly, today's LED TVs are quite common. And then if we talk about lighting, then LEDs are used for lighting in houses and offices. And not only that, today, from the street lights to the traffic signals, or even for the display boards, LEDs are commonly used. So, in this video, let's understand the workings of the LED, different types of LEDs, and the advantages of the LED. And first, let's see the advantages of LED. Now, whenever LED bulbs are used for lighting, they are more energy-efficient than conventional bulbs. Also, the lifespan of these LED bulbs is longer than conventional bulbs. Then the third advantage of the LED is that it can be operated in a fast switching application. And the other advantages are the smal...

Basic Electronics Tutorial

Basic Electronics ideas that provide the groundwork for today's electrical, electronics, and radio technologies. current, voltage, resistance, and so on Basic Electronics Tutorials and Revision is a free online Electronics Tutorials Resource for Beginners What is Current What is Voltage What is Resistor What are transistors and how do they work? What is Diode Diode All Types What is Transistor