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प्रश्न
Write two examples of their useful applications .
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उत्तर १
Eddy currents are used Magnetic braking in trains, Electromagnetic damping, Induction furnace, Electric power meters.
उत्तर २
Uses of Eddy Current:-
- Induction furnace:- The heating effect of eddy current is used for melting metal in induction furnace.
- Electric Brakes:- It is an efficient system of brakes employed in electric trains when the train is to be stopped, a strong magnetic field is applied to the rotating drum. This results in the generation of large eddy currents
संबंधित प्रश्न
Two spherical bobs, one metallic and the other of glass, of the same size are allowed to fall freely from the same height above the ground. Which of the two would reach earlier and why?
Give one example of use of eddy currents.
If the magnetic field outside a copper box is suddenly changed, what happens to the magnetic field inside the box? Such low-resistivity metals are used to form enclosures which shield objects inside them against varying magnetic fields.
In which of the following devices, the eddy current is not used ______
Why and where are eddy currents are undesirable? How are they minimized?
The plane in which eddy currents are produced in a conductor is inclined to the plane of the magnetic field at an angle equal to ______.
What are eddy currents?
A constant retarding force of50 N is applied to a body of mass 20 kg moving initially with a speed of 15 ms-1. How long does the body take to stop?
Which one is not an application of eddy current?
