VERY IMPORTANT FOR EXAMS

 @ MAGNETIC FORCE D;k gS \

Between two magnet attract or repel each other is called magnetic force. (attraction or repulsion is force).

@ MAGNETIC FIELD STRENGTH D;k gS\

;g ,d point ij fudkyk tkrk gSA Magnet ds ,d iksy dks ,d point ij j[kus ls og tks ml attraction show djrk gS mls magnet field strength  dgrs gSa ml IokbaV ij ( attraction or repulsion)

@ Magnetic Flux D;k gS\

Total no. of magnetic lines in magnetic field is called magnetic flux.

@ Lines of induction fdls dgrs gSa\

Magnet ds vanj Hkh FLUX Lines S pole  to N pole  dh vksj tkrh gSaA Flux lines ds lewg dks Lines of induction dgrs gSaaA tks mlesa mRiUUk gqvk gSA

@ Saturation means D;k gksrk gS\

Tc fdlh iron dks magnet cukus ds fy;s DC or AC nsrs tkrs gSaA rks ,d  point ij mlds vanj pqEcdRo dk xq.k vk tkrk gS A fQj mlds ckn mls vkSj electricity (dc or ac)  nsus ij og vkSj vf/kd pqEcdh; izo`fÙk fodflr ugha gks ldrk rks mls mldk Saturation point cksyrs gSaaA

@ Hysteresis Loss D;k gS\

Tc dksbZ vk;ju piece pqacd cuus ds fy;s tiny magnet dks /kDdk ekjrs gSaa fd oks eSaXusV cu tk, rks mlds vanj fufgr ÅtkZ dk gkl gksus yxrk gS blh loss dks friction ;k Hysteresis loss dgrs gSaA

@ Eddy Current loss D;k gS\

Tc magnetic flux esa j[kh /kkrq ds vanj magnetic current mRiUu gks tkrh gS rks ml current ds lkFk eddy current Hkh mRiUu gks tkrh gS tks magnetic flux ko oppose djrh gS bls gh eddy current loss dgrs gSaA eryc ,sMh loss krti hai.