Electronics guide: Diode, Capacitor, Arduino Platform, and Electronics Store
Electromagnetic radiation plays a crucial role across various fields due to its ability to propagate through space without the need for a medium, allowing it to transmit energy and information over vast distances. This property is essential in telecommunications, where radio waves, microwaves, and other forms of electromagnetic radiation are used to transmit signals for … Read more
A solenoid engine works by using electromagnets to push and pull a plunger or piston within a cylinder. When an electric current is applied to the electromagnets, they create magnetic fields that attract or repel the plunger, causing it to move back and forth. This reciprocating motion can be harnessed to drive mechanical processes or … Read more
In practical life, voltage is not always directly proportional to current. The relationship between voltage and current in a circuit depends on the type of component or load connected. In resistive circuits, according to Ohm’s Law, voltage (V) is directly proportional to current (I), given by V = IR, where R is the resistance. This … Read more
Salt and charcoal are used in earthing to enhance the conductivity of the soil. When a grounding system is installed, such as for electrical or telecommunication purposes, it’s crucial to ensure low resistance between the grounding electrode and the surrounding soil. Salt, being hygroscopic, helps to retain moisture in the soil, which improves its conductivity. … Read more
IGBTs (Insulated Gate Bipolar Transistors) are used in inverter modules of Variable Frequency Drives (VFDs) due to their capability to handle high voltages and currents efficiently. In VFDs, IGBTs serve as the switching devices in the inverter stage, where they convert DC voltage from the rectifier into AC voltage with variable frequency and amplitude. This … Read more
In electrical circuits, particularly with circuit breakers, swapping the line and load connections can have significant consequences. Circuit breakers are designed with specific connections for the line (incoming power) and load (outgoing circuit). The line side is where the power supply is connected, typically from the electrical panel or source. The load side is where … Read more
What is active and passive components in circuit ? Active and passive components are two broad categories of electronic elements used in circuits. Active components require a source of energy (typically from a power supply) to function and control the flow of electrical current. They can amplify signals, generate oscillations, or perform switching functions. Examples … Read more
Controlling the speed of a DC series motor can be achieved through several methods, each tailored to meet specific operational requirements. One common method is to vary the applied voltage using a technique called armature voltage control. By adjusting the voltage supplied to the motor’s armature, either manually or through a controller, the speed of … Read more
An inductor is not typically used in a DC circuit because its primary function involves opposing changes in current flow. In DC circuits, the current flow is constant and unidirectional, which means there are no changes in current to oppose. Therefore, the role of an inductor, which is to store energy in a magnetic field … Read more
Transformers do not work with a DC supply primarily because they rely on the principle of electromagnetic induction, which requires a changing magnetic field. In AC (alternating current) systems, the voltage continuously alternates in polarity and magnitude, causing the magnetic field in the transformer’s primary winding to continually change. This changing magnetic field induces a … Read more