Two identical circular loops 
and 
each of radius 
are lying in parallel planes such that they have common axis. The current through 
and 
are 
and 
respectively in clockwise direction as seen from 
. The net magnetic field at 
is:
towards 
towards 
towards 
towards 
Text Solution
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Two identical circular loops P and Q, each of radius 
, are separated by distance 
along their common axis.
Current in P is 
and in Q is 
(both clockwise as seen from O).
Point O is at the midpoint. The magnetic fields from each loop at O:
(from P, pointing toward Q)
(from Q, pointing toward P)
Direction: towards Q.
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