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electro-magnet definition
Electromagnet is a type of magnet that is made by passing an electric current through a coil of wire wrapped around a ferromagnetic core.
electro-magnet শব্দটির synonyms বা প্রতিশব্দ
electro-magnet Example in a sentence
The electromagnet, a device that harnesses electricity to create a powerful magnetic field, was invented in the early 19th century.
An electromagnet consists of a coil of wire wrapped around a core of ferromagnetic material, such as iron or steel.
When an electric current flows through the coil, it generates a magnetic field within the core, making it behave like a magnet.
The strength of the magnetic field depends on factors like the number of turns in the coil and the amount of current passing through it.
Electromagnets find extensive use in various applications, including electric motors, generators, transformers, and MRI machines.
In an electric motor, an electromagnet interacts with a permanent magnet or another electromagnet to generate rotational motion.
In a generator, an electromagnet induces an electric current in a conductor by rotating it within a magnetic field.
Transformers utilize two electromagnets to transfer electrical energy from one circuit to another by electromagnetic induction.
MRI machines employ powerful electromagnets to create a strong magnetic field, enabling them to obtain detailed images of the human body.
Electromagnets have revolutionized various fields of science and technology, providing precise control over magnetic fields and enabling the development of numerous innovative devices.