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Aya Elsayed
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There aren't any eddy currents in the metallic core of the galvanometer , Although it moves in a magnetic field? If it's right , why?
What causes eddy currents to form in metals?
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In summary, eddy currents are induced in metal when it experiences a changing magnetic field. This can lead to an increase in internal temperature and can be applied in induction furnaces.
- #2
berkeman
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Welcome to the PF.Aya Elsayed said:
What reading have you done about eddy currents? What are the Relevant Equations?
- #3
Aya Elsayed
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Thanks! ... Eddy currents are induced in a metal when it feels a changing magnetic field . Then its internal temperature gets high and startes to melt . we apply that to the induction furnace... That's all what I knew about them .berkeman said:Welcome to the PF.
What reading have you done about eddy currents? What are the Relevant Equations?
FAQ: What causes eddy currents to form in metals?
What is the purpose of a Galvanometer's core?
A Galvanometer's core is a crucial component of the instrument that helps to detect and measure small electrical currents. It also helps to convert these currents into mechanical movements that can be read on a scale.
How does the Galvanometer's core work?
The Galvanometer's core works by using the principle of electromagnetism. It consists of a coil of wire that is wrapped around a soft iron core. When an electrical current passes through the coil, it creates a magnetic field that interacts with the core, causing it to move. This movement is then transferred to a pointer or needle, which displays the current reading on a scale.
What is the difference between a moving coil and moving magnet Galvanometer's core?
The main difference between a moving coil and moving magnet Galvanometer's core is the type of movement used to detect and measure currents. In a moving coil Galvanometer, the coil is attached to the pointer and moves along with it, while in a moving magnet Galvanometer, the magnet is attached to the pointer and moves in response to the current. Both types have their own advantages and disadvantages, but they ultimately serve the same purpose.
Can a Galvanometer's core be used for any type of current measurement?
No, a Galvanometer's core is designed specifically for measuring small electrical currents. It is not suitable for measuring large currents, such as those used in power grids. Additionally, it is not capable of measuring alternating currents, as it relies on the interaction between the magnetic field and the core, which only occurs with direct currents.
What are some applications of the Galvanometer's core?
The Galvanometer's core is commonly used in various fields, including electrical engineering, physics, and medicine. It is used to measure small currents in electrical circuits, detect magnetic fields, and monitor heartbeats in medical equipment. It is also used in research experiments and in industries such as telecommunications and automotive manufacturing.