OUESTION
1 NAME ALL RAYS WITH INTIAL POINTS P AND Q?
2 IS PQ DIFFERENT FROM PB?
3 IS PA DIFFERENT FROM OA ?
4 IS OA DIFFERENT FROM QB?
solve in long and how
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Step-by-step explanation:
In P and R only, current divides equally in the two halves because of equal resistances in the two halves. The currents in the two halves then make the field at centre zero.
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