Eddy Current
Eddy Current: Overview
This Topic covers sub-topics such as Eddy Currents, Induction Furnace, Application of Eddy Currents, Electromagnetic Damping, Magnetic Braking in Trains, Electric Power Meters, Disadvantages of Eddy Current and, Direction of Eddy Current
Important Questions on Eddy Current
Lenz's law follows when eddy currents are generated.
Which two laws are used to find the direction of eddy currents?
Eddy currents travel in
Electromagnetic damping is inversely proportional to
Electromagnetic damping is similar to
Electromagnetic damping is associated with:
Which of the following is a disadvantage of eddy currents?
The working of an analogue type electric power meter is based on
Which of the following is responsible for the working of an analogue electric power meter?
Which of the following is essential for the working of an induction furnace?
On what principle does an induction furnace works?
Induction furnace make use of
Which of the following does not use the application of eddy current?
Identify the wrong statement.
A metal plate can be heated by
Assertion: A thin aluminium disc, spinning freely about a central pivot, is quickly brought to rest when placed between the poles of a strong U-shaped magnet.
Reason: A current induced in a disc rotating in a magnetic field produces a force which tends to oppose the motion of the disc.
Assertion: A thin aluminium disc, spinning freely about a central pivot, is quickly brought to rest when placed between the poles of a strong U-shaped magnet.
Reason: A current induced in a disc rotating in a magnetic field produces a force which tends to oppose the motion of the disc
Eddy current are produced when
When a metallic plate swings between the poles of a magnet
