An electric motor is a device that converts electrical energy into mechanical energy. It works by using the principle of electromagnetism, which is the interaction between electric currents and magnetic fields. There are different types of electric motors, but the basic idea is the same: a coil of wire carrying an electric current rotates inside a magnetic field, creating a force that makes the coil spin. One of the simplest electric motors is a DC motor , which runs on direct current (DC) from a battery or a power supply. A DC motor has two main parts: a rotor and a stator. The rotor is the part that spins and has a coil of wire wrapped around an iron core. The stator is the part that stays still and has a permanent magnet or an electromagnet. The coil of wire on the rotor is connected to a split ring called a commutator, which rotates with the coil and switches the direction of the current every half turn. This ensures that the coil always experiences a force in the same direc...
An electrical transformer is a device that transfers electrical energy from one circuit to another by electromagnetic induction. It is used to change the voltage level of alternating current (AC) power. A transformer consists of several parts, each with a specific function and purpose. Here are some of the main parts of an electrical transformer and their functions: - Core: The core is the central part of the transformer that supports the windings and provides a low reluctance path for the magnetic flux. The core is made of thin sheets of high-grade steel, separated by thin insulating materials, to reduce the losses due to hysteresis and eddy currents. -Windings: The windings are coils of copper or aluminum conductors that carry the electric current and produce the magnetic flux in the core. The windings are insulated from each other and from the core. There are two sets of windings per phase: the primary winding and the secondary winding. The primary winding is connected to the i...