Physics

• Faraday's Law provides the mathematics for electromagnetic induction
• Faraday's Law explains how a changing magnetic flux generates an “induced electromagnetic force in a circuital loop.
• Electromagnetic induction refers to the process in which either a conductor or a magnetic field is kept varying to produce an electromotive force or emf across the current-carrying conductor.
• The two scientists conducted several experiments about magnetically-induced electromotive force are Michael Faraday and Joseph Henry
• The experiments consisted of Solenoid and Magnet
• A changing magnetic flux ΦB, as observed in the results of the experiments, causes a change of the magnetic field over a period of time. The rate of this change is proportional to the electromotive force induced in the circuit.
• A generator converts heat, mechanical, or chemical energy into electrical energy.
• A dynamo refers to a generator that transforms mechanical energy into electricity.
• The two main parts of a generator are Rotor and Stator
• Rotor is made of coiling wires around metal core poles.
• Stator contains a pair of plates connected to the axle.
• Stator works with the rest of the device to allow the induced current to flow through the system.
• Electromotive force is generated once the shaft and the coil begin to rotate around the shaft
• Transformers permits electricity to be transmitted from long distances.
• The Law of Induction accounts for the reduction of electric current as the power is kept constant, thus permitting the increase of voltage and the decrease of current or the opposite.
• Transformers uses coils with varying number of loops connected by a metal conductor, which allows the magnetic flux to pass through from one coil to another.
• Eddy Currents is also called Foucault’s current.
• Eddy currents contains loops of induced electrical current caused by changing magnetic field within the device.
• Eddy currents is commonly used in the brakes of trains.
• Magnetic Card Stripes are magnetized layers that have different magnetic field orientations that store encoded information.
• Induced current and induced emf refer to the respective current and emf produced by a changing magnetic flux.