what is Heating Effect of Electric Current When electricity flows through a wire or any other material, it produces heat. This is called the heating effect of electric current. Imagine tiny particles, called electrons, moving through the wire. As they move, they bump into other particles inside the wire. These bumps or collisions make the … Read more
The Story of Electricity 🌟 Long, long ago—before light bulbs, fans, or even batteries—people didn’t know what electricity was. But it was always there, hidden in nature, just waiting to be discovered. Imagine this: thousands of years ago, people saw lightning flash across the sky and felt little shocks when they touched certain objects. That … Read more
capacitor definition- A device made by placing a dielectric medium (bad conductor) between two metallic conductor plates is called a capacitor. A capacitor is a device that opposes changes in voltage. Mica, ebonite, air etc. are used as dielectric medium (bad conductor) in capacitor. Metals like tin, aluminium etc. are used for conductor plates in … Read more
Introduction- what is resistance? Imagine you’re trying to walk through a crowded room. The more people in your way, the harder it becomes to move forward. In the same way, when electricity flows through a material, tiny particles called electrons are trying to move forward. But they don’t get a clear path. The material they’re … Read more
atom and molecules class 9 notes Structure of Material– matter – particle – molecule – atom –stable atomic particle and unstable nuclear particles Molecules- Atom structure of atom class 11 notes The structure of an atom is made up of three fundamental particles, electron, proton and neutron. . Nucleus- Protons- Neutrons- Electron- particle Weight (in … Read more
what is Electricity? Types of Electricity- Electricity is mainly classified into two parts Static Electricity- Static electricity refers to the resting state of electrons, which is created by some rubbing or friction between two objects. what is electricity fact? If a glass rod is rubbed with a silk cloth, then due to the electrostatic effect … Read more
key point Introduction-(WHAT IS CHARGE?) What is electric Charge what is electricity Static Electricity Application of electric charge Computer printers, paint sprayers and seismographs are also based on electrostatics. Dynamic Electricity- Methods of electric Charge Generation- Charges are generated mainly in three ways- By friction- positively charged negatively charged glass rod cat skin woolen clothes … Read more
Introduction relay is an electrical device that senses the abnormal condition arising in the electrical circuit. Current transformer and trip coil are usually used as auxiliary equipment of the relay. Their combination is such that the relay gets energized when a short-circuit or overload fault occurs and the relay automatically operates and separates the faulty … Read more
HRC fuse full form HRC fuse full form – High Rupturing Capacity Fuse HRC fuse is a developed form of cartridge fuse which protects the circuit at high voltage and current and high load. Their rupture capacity is very high, up to 500 MVA at about 66 kV. That is why they are called high … Read more
Definition of Switch Gears The devices used in switching, regulation, and protection of electrical circuits and equipment are installed in a panel board; these are collectively called switchgear. or switch gear meaning “The apparatus used for switching, Controlling and protecting the electrical circuits and equipment is known as Switch gear” Mainly switch gear equipment is … Read more
What is a DC Generator? A DC Generator is a machine that makes electricity. But not just any electricity — it makes DC electricity, which means Direct Current. Let’s make it super easy to understand. Imagine you have a toy fan that runs on batteries. The batteries give it power in one single direction — … Read more
key phase Transformers work on the principle of mutual induction. They have primary andsecondary windings that are electrically isolated from each other. As these windingsare wound on the same magnetic core, they are magnetically coupled to each other. The magnetic core is made from the laminations of either CRGO silicon steel or theamorphous alloy. … Read more
PVC wires or PVC insulated wires, are electrical cables with insulation made ofPVC (Polyvinyl Chloride), a plastic material. These wires are commonly utilized in variouselectrical applications because of their exceptional insulation, flexibility, durability, and cost-effectiveness. Wire A wire is a thin, pliable, and elongated conductor composed of a conductivesubstance, usually metal, employed for transferring electrical … Read more
Introduction Single phase power system is widely used as compared to three phase system for domesticpurpose, commercial purpose and to some extent in industrial purpose. As the single phase system ismore economical and the power requirement in most of the houses, shops, offices are small, this can beeasily met by single phase motor. The single … Read more
Basic Alternator Working Principle: WHAT IS ALTERNATOR? Alternating current generators are usually called alternators. They operate on the principle ofFaraday’s laws of electromagnetic induction. This law states that whenever a conductor cuts the magneticflux an emf is induced in it. This emf causes a current to flow if the circuit is closed. Fig 1.1 shows … Read more
INTRODUCTION In the year 1821 British scientist Michael Faraday explained the conversion of electrical energyinto mechanical energy by placing a current carrying conductor in a magnetic field which resulted in therotation of the conductor due to torque produced by the mutual action of electrical current and magneticfield. Based on his principle the most primitive of … Read more
What is a Circuit Breaker? A circuit breaker essentially consists of fixed and moving contacts, called electrodes. Undernormal operating conditions, these contacts remain closed and will not open automatically until andUnless the system becomes faulty.The contacts can be opened manually or by remote control whenever desired. When a fault occurs on anypart of the system, … Read more
What is a Molded Case Circuit Breaker (MCCB)? A Molded Case Circuit Breaker, or MCCB switches, is like a guard for your electrical system. It watches over your wires and machines and quickly stops the power if something goes wrong—like when too much electricity flows or when there’s a short circuit. This helps keep your … Read more
Transformer Safety: Transformers play a big role in powering our industries. They help move electricity safely and efficiently. They are helpful in many ways, but if not used properly, they can also cause harm Working with transformers can lead to serious risks. Electric shocks, arc flashes, and even fires or explosions can happen if safety … Read more
Power transformers are made to change the voltage up or down so electricity can travel long distances more easily. On the other hand, distribution transformers are used to lower the voltage even more so that it is safe and ready to use in homes and businesses. Key Difference Between Power and Distribution Transformer 1. Power … Read more
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Power factor is a measure of how effectively electrical power is being used by a system. It is defined as the ratio of real power flowing to the load, to the apparent power in the circuit. In mathematical terms, it is the cosine of the phase angle between the voltage and current waveforms. Power factor … Read more
