PQ and RS are long parallel conductors separated by certain

Last updated: 6/24/2023

PQ and RS are long parallel conductors separated by certain distance M is the midpoint between them The magnitude of net magnetic field at M is 2B Now the current 1 A is switched off Then the magnitude of the field at M now becomes P R O 2B 3 O 4B 3 O 2B OB 2A M S 1A