EDDY CURRENT

A: When a bar magnet is dropped into a vertical long hollow metallic tube, the magnet ultimately moves with zera acceleration. R: The magnet falling into metallic tube causes the eddy currents in the metal tube, so the motion of the magnet is damped.

Introduction OF Electric Current || Current Density || Current in a Conductor

Eddy curents are the current …………………….when …………………….changes.

Magnetic Flux |PYQ On Magnetic Flux |Faraday's Experiments-1|PYQ On Faraday's Law |Lez's Law |Charge Flown|Motional EMF|Eddy's Current|Self Inductance|Inductor|Mutual Inductance|AC Generator

In a long staright solenoid with cross-sectional radius a and number of turns per unit length n a current varies with a constant velocity dotI A//s . Find the magntidue of the eddy current field strength as a function of the distance r from the solenoid axis. Draw the appoximate plot of this function.

Statement (A) : In high current low voltage windings of a transformer thick wire is used to minimize energy loss due to heat produced Statement (B) : The core of any transformer is laminated so as to reduce the erergy loss due to eddy currents.