Physics Project for class 12 | ElectricGenerator working model | How to makeElectric Generator скачать в хорошем качестве

Physics Project for class 12 | ElectricGenerator working model | How to makeElectric Generator

Physics Project for class 12 | Electric Generator working model | How to make Electric Generator Ac generator working model #science #project #physics #school #diy #scienceproject #moderncity #experiment #smartcity #chandrayaan3 #respiratorysystem #rajput ac generator class 12, ac generator class 12 cbse, what is ac generator class 12, ac generator class 12 physics, ac generator class 12 in hindi, ac generator class 12 kpk board, working of ac generator class 12, ac generator class 12 animation, class 12 physics ac generator, class 12 ac generator physics, ac generator class 12 derivation, ac generator or dynamo class 12, ac generator class 12 working model, ac generator class 12 physics wallah, ac generator class 12 friends physics, ac generator class 12th, ac generator class 12, ac generator class 12 cbse, what is ac generator class 12, ac generator class 12 physics, ac generator class 12 in hindi, ac generator class 12 kpk board, working of ac generator class 12, ac generator class 12 animation, class 12 physics ac generator, class 12 ac generator physics, ac generator class 12 derivation, ac generator or dynamo class 12, ac generator class 12 working model, ac generator class 12 physics wallah, ac generator class 12 friends physics, ac generator class 12th, physics, ap physics, physics lady, physics edit, sigm physics, physics magic, physics queen, sigma physics, physics status, maths vs physics, quantum physics, particle physics, physics concepts, physics education, high school physics, university physics, physics principles, physics experiment, physics experiments, theoretical physics, sigma physics teacher, physik, condensed matter physics, viral physics experiments, viral physics shorts video, class 11th physics oneshot, physics vs maths which is hard, -------------------------------------------------------------------------- An AC Generator (also known as an Alternator) is an electrical machine that converts mechanical energy into electrical energy in the form of Alternating Current (AC). It is a cornerstone of modern power systems, used in everything from small portable generators to massive hydroelectric and nuclear power plants. 1. Working Principle The AC generator works on the principle of Faraday’s Law of Electromagnetic Induction. The Principle: When a conductor (like a wire coil) is rotated in a magnetic field, the magnetic flux linked with the coil changes. This change in flux induces an Electromotive Force (EMF) or voltage across the ends of the coil. 2. Main Components To build or understand a model AC generator, you need these four essential parts: **Armature (Coil): A rectangular coil with many turns of insulated copper wire wound over a soft iron core. Strong Field Magnets: Two powerful magnets (North and South poles) that create a uniform magnetic field. Slip Rings: Two metal rings attached to the ends of the coil. They rotate with the coil and help maintain a continuous connection. Brushes: Stationary carbon blocks that press against the slip rings to collect the current and pass it to the external circuit (like a bulb). 3. How It Works (Step-by-Step) Rotation: Mechanical energy (from a turbine or hand crank) rotates the armature coil within the magnetic field. Flux Change: As the coil turns, the angle between the coil and the magnetic field lines changes, which changes the magnetic flux. Current Generation: According to Faraday's law, this change induces a current. Alternating Nature: During the first half-rotation, current flows in one direction. In the second half-rotation, the direction reverses. This is why it's called Alternating Current. Fleming's Right-Hand Rule: This rule is used to determine the direction of the induced current at any moment. 4. Mathematical Formula The instantaneous induced EMF (e) in the coil at any time (t) is given by: Where: N = Number of turns in the coil B = Strength of the magnetic field A = Area of the coil \omega = Angular velocity (speed of rotation) t = Time At its peak (\sin(\omega t) = 1), the maximum EMF is E_0 = NBA\omega. Key Difference: AC vs. DC Generator While both convert mechanical energy to electrical energy, an AC Generator uses slip rings to produce current that changes direction, whereas a DC Generator uses a split-ring commutator to produce current that flows in only one direction. AC Generator or Dynamo | Construction and Working This video provides a detailed breakdown of the construction and working of an AC generator, which is very helpful for Class 12 exam preparation and model making. YouTube video views will be stored in your YouTube History, and your data will be stored and used by YouTube according to its Terms of Service