Electronics guide: Diode, Capacitor, Arduino Platform, and Electronics Store
Can a fuse protect us without earthing from an electric shock ? A fuse primarily protects electrical circuits and devices from overcurrent conditions that could lead to overheating, fires, or damage to electrical components. It does not directly protect against electric shocks in the absence of proper grounding or insulation. Electric shocks occur when a … Read more
Why is a linear power supply called linear ? A linear power supply is named as such because of the linear relationship between the input voltage, output voltage, and current. In a linear power supply, the input AC voltage is first transformed to a lower AC voltage (if needed), rectified to DC, and then regulated … Read more
How does a direct current transformer work ? A direct current (DC) transformer is a bit of a misnomer because traditional transformers cannot directly handle DC. Transformers rely on changing magnetic fields to induce voltage in the secondary coil, which requires alternating current (AC). To work with DC, a device known as a DC-DC converter … Read more
What is the difference between an LED and a diode ? An LED (Light Emitting Diode) differs from a standard diode primarily in its ability to emit light when forward biased. Both LEDs and diodes are semiconductor devices with a PN junction, but LEDs are specifically designed to convert electrical energy into visible light. When … Read more
How does a spark plug produce current ? A spark plug produces current through a process involving an electrical discharge that jumps across a gap between two electrodes inside the combustion chamber of an engine. When the ignition coil generates a high-voltage pulse, typically from 12,000 to 45,000 volts depending on the engine, this voltage … Read more
What is the SI unit of entropy ? The SI unit of entropy is joules per kelvin (J/K). Entropy is a thermodynamic quantity that measures the amount of disorder or randomness in a system. In SI units, entropy is expressed as energy per unit temperature, where joules (J) is the unit of energy and kelvin … Read more
What is a crystal? A crystal is a solid material whose atoms or molecules are arranged in a highly ordered repeating pattern, extending in three dimensions. This atomic arrangement results in a regular, geometrically shaped structure that gives crystals their characteristic properties, such as clarity, hardness, and often a symmetrical external form. Crystals can form … Read more
A lightning conductor, also known as a lightning rod or air terminal, is a metal rod or conductor installed on the top of a building or structure. Its primary function is to protect the building from lightning strikes by providing a preferred path for the electrical discharge to reach the ground safely. When a thundercloud … Read more
A shunt trip breaker works by incorporating a built-in shunt trip device that allows the breaker to be tripped remotely. The shunt trip device consists of a solenoid or coil that, when energized by an external control signal, mechanically triggers the breaker to open. This design ensures that the breaker can be tripped not only … Read more
Circuit breakers can deteriorate or go bad over time due to various factors such as age, wear and tear, environmental conditions, and electrical faults. One common issue is that the internal components of a circuit breaker can become worn or damaged, affecting its ability to properly trip and reset when necessary. Additionally, exposure to moisture, … Read more