What is solar energy and how does it work ?

Solar energy refers to the radiant light and heat emitted by the sun that is harnessed using various technologies to generate electricity or provide heat for buildings, water, and other applications. Solar energy works by capturing sunlight using solar panels or photovoltaic cells. These cells convert sunlight directly into electricity through the photovoltaic effect, where … Read more

What is the role of circuit breakers ?

Circuit breakers play a crucial role in electrical systems by providing protection against overcurrents and faults that could lead to equipment damage, fires, or hazards to personnel. Their primary function is to interrupt the flow of electrical current in a circuit when abnormal conditions such as short circuits, overloads, or ground faults occur. By disconnecting … Read more

How are Shockley diodes used in an electric circuit ?

Shockley diodes, also known as DIACs (Diode for Alternating Current), are primarily used in triggering and controlling the switching of thyristors and other semiconductor devices in electric circuits. They exhibit a negative resistance characteristic, which means they can conduct current only after a certain voltage threshold is reached. In circuits, Shockley diodes are commonly employed … Read more

What is the use of a ceramic capacitor ?

Ceramic capacitors are widely used in electronic circuits for a variety of purposes due to their favorable electrical properties and compact size. One primary use of ceramic capacitors is for decoupling and bypassing applications. In these roles, ceramic capacitors help filter out noise and stabilize power supplies by providing a low-impedance path to ground for … Read more

How to make an AC motor run both ways ?

AC motors can be designed to run in both directions by changing the connections of their windings. Here’s how you can achieve this: To make an AC motor run in both directions, you typically need to swap the connections of either the starting winding or the main winding. AC induction motors, which are the most … Read more

Why do we use zener diodes as voltage regulators ?

Zener diodes are commonly used as voltage regulators due to their unique ability to maintain a constant voltage across their terminals when operated in reverse bias beyond their breakdown voltage, known as the Zener voltage. This characteristic makes Zener diodes ideal for stabilizing voltage levels in electronic circuits. When the voltage across a Zener diode … Read more

How does a fluorescent light work ?

A fluorescent light works by using electricity to excite mercury vapor within a glass tube, which in turn produces ultraviolet (UV) light. This UV light then interacts with a phosphor coating on the inside of the tube, causing the phosphor to emit visible light. The process starts when an electrical current passes through the gas-filled … Read more

What are the uses of encoders and decoders ?

Encoders and decoders are used in various fields of electronics and communication to convert data from one form to another. Encoders convert information from a familiar format into a coded format, making data transmission and storage more efficient. Decoders perform the reverse function, translating coded data back into its original form. These devices are essential … Read more