The electrical symbol for an inductor is L. What is an inductor used for? We'll send you an email containing your password.store the energy in the form of electrical energy and electrical charge,Artificial intelligence - machine learning,Circuit switched services equipment and providers,Business intelligence - business analytics,CISO as a service (vCISO, virtual CISO, fractional CISO),PCI DSS (Payment Card Industry Data Security Standard),HIPAA (Health Insurance Portability and Accountability Act). In the measurement of magnetic circuits, it is equivalent to weber/ampere. Figure 1 – Typical form of an inductor. This powder is mixed with an epoxy resin and molded to form cores around which wires can be wound.Inductors connected in series and parallel behave the exact opposite way to capacitors.For example, to calculate the inductance of a group of inductors in series, you can simply sum up the values of the individual inductances.Where L is the total inductance and L1, L2…Ln are the individual inductances.Suppose you have two inductors, one measuring 10uH and the other 15uH, then by putting them in series you obtain a total inductance of 25uH.Inductors in parallel behave the same way as resistors in parallel, the inductance is given by:In this way if you connect two 10uH inductors in parallel, you’ll end up with an inductance of 5uH.Inductors can store energy much like capacitors, but the energy is gone the moment you disconnect the power and the magnetic field collapses. What Is An Inductor? Inductors are used as the energy storage device in many switched-mode power supplies to produce DC current. An inductor is a passive electrical component that opposes sudden changes in current. Like mentioned above, they have an impedance, which makes them useful to limit current in an AC circuit, such as fluorescent lamp ballasts.In the first case, the inductor allows all DC current to flow through it to ground, preventing all the low frequencies from reaching the output. An inductor, also called a coil, choke, or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it.An inductor typically consists of an insulated wire wound into a coil around a core. They are used to block AC while allowing DC to pass; inductors designed for this purpose are called chokes. It suggests that the magnetic field inside the inductor can be manipulated. Along with capacitors and resistors, inductors are one of the three passive linear circuit elements that make up electronic circuits. It allows the energy that is being sent from the inductor coil to return to the power source. This creates periodic oscillations which can be used to generate high frequencies.The frequency can be calculated by the formula:Where f is the frequency in Hertz, L is the inductance in Henrys and C is the capacitance in Farads.And that is all the practical knowledge you will require to work with inductors. An Inductor on the other hand does not like the change in current within a circuit so it the current changes it will charge or discharge to equalize the current through the circuit.Also remember that an Inductor changes it polarity while discharging so the potential during charging will be opposite to the potential during dis-charge.Like many other electronic components, the symbol for an inductor is a simplified pictogram of what it actually looks like:The lines near the symbol represent the core material – something we will discuss later.An inductor, as already mentioned, is just a coil of wire.Before we go into anything else, let’s ask the question, why a coil?As we already know, any current carrying conductor generates a magnetic field in the following fashion:However, if you plug in the value of the current into the formulas, then you’ll realize that the magnetic field produced is tiny – almost negligible, unless the currents are impossibly high, in the order of mega-amps.So in order to increase the magnetic field created by a specific length of wire, we wrap it into the form of a coil. Occasionally you might even find very small inductances measured in nanoHenrys, which are a thousandth of a uH.Now the µ in the above equation has some interesting implications. The inductor is made of wire which has the property of inductance, i.e., opposes the flow of current. One Passive component that always remains obscure is the.First things first both store energy when a voltage potential is applied across it, but a Capacitor stores energy in form of an Electric Field and an Inductor stores energy in form of a Magnetic felid. Rather than using magnetic material, steel is used to create a center. With this, it can also store energy in the magnetic field when the current passes through it. When a current flows through this coil, then temporarily stores the in the coil. Since air has a relatively low permeability, the inductance of air core inductors is quite low – rarely above 5uH. That is why in almost all cases you find inductors formed around a core material.Cores are materials that support the creation of a magnetic field.
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