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17 MAGNETIC EFFECT OF ELECTRIC CURRENT
www.nios.ac.inMODULE - 4 Magnetic Effect of Electric Current Energy 398 the direction of magnetic needle changes continuously and it takes the curved path while moving from north to south. This curved path is known as magnetic line of forces. Tangent line draw at any point on magnetic line of force, represent the direction of magnetic field at that point.
14 Effects Electric Current and Its - National Council …
ncert.nic.in78 EXEMPLAR PROBLEMS 14. Name two electric devices for each where (i) heating effect of current is used and (ii) magnetic effect of current is used. 15. Why do we cover plug pin holes which are within the reach of