A current carrying rectangular loop PQRS is made of uniform wire . The length PR = QR =5 cm and PQ =

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A current carrying rectangular loop PQRS is made of uniform wire . The length PR = QR =5 cm and PQ = RS = 100 cm . If ammeter current reading changes from i and 2i , the ratio of magnetic forces per unit length on the wire PQ due to wire RS in the two cases respectively fpq i : f pq 2i is
[ JEE Main 30 jan 2023 shift 2 ]
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Par sir pqrs agr infinite wire hoti tabhi wo formula use kar paate, par yaha toh infinite nhi hain., sir please reply 😢

yuvrajchaudhary-dgul