Eddy Current | #shorts reaction With Copper Pipe and Magnet | electromagnetic induction class 12

What condition is necessary for the production of current by electromagnetic induction ?

Create a concept map using the following words electromagnetism, electrlcity, magnetism, solenoid, electromagnet, magnetic field electromagnetic induction, generators and transformers, motors.

Assertion: A metal object kept in timevarying magnetic field gets cooled. Reason: When metal object is kept inside time-varying magnetic field then due to electromagnetic induction electric current start flowing on the surface.

(a) What do you understand by the term "electromagnetic induction"? Explain with the help of a diagram. ltBrgt (b) Name one devices which works on the phenomenon of electromagnetic induction. (c ) Describe different ways to induce current in a coil of wire.

A current is flowing through a conducting hollow pipe whose area of cross-section is shown in the fig. The value of magnetic induction will be zero at-

The Magnetic induction at a point on the axial line of short Magnet is 10 tesla east The Magnetic induction at the same point when the Magnet is rotated in the anticlockwise direction as observed from above by 90^(@) and 180^(@) are