i think its a direct application of ampere's circuital law naa........
WHY THE MAGNETIC FIELD LINES IN A TOROID R CONFINED TO WITHIN IT's CORE...BUT NOT SO IN CASE OF SOLENOID....
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yaar paper bahut lengthy tha....wat lag gayi.....
JITNA CHEM KA DE KAR KHUSH THA UTNA HI PHYSICS NE RULAYA.....
@AKAND....
YAR BY THAT ONLY MAGNETIC FIELD IS ZERO....
MAGNETIC FIELD TO WAHAN BHI ZERO HOTI HAI JAHAN DO MAGNETIC FIELD LINES OPPOSE KAREIN.....
hmmmmm...........i will try to answer it.....but u answer my question first.....
Is solenoid closed object???????
Is toroid closed object?????
I think u will get answer by considering them.....
The magnetic field due to the wound wires gets cancelled in case of toroid , but not in the solenoid... correct it if i am wrong!!