Please answer b and c
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B▪ C has strong magnetic field because this solenoid is folded on an iron which increase magnetic field
C▪ In this b will have more magnetic field because in this number of turns of solenoid are more as compared to C
B▪ C has strong magnetic field because this solenoid is folded on an iron which increase magnetic field
C▪ In this b will have more magnetic field because in this number of turns of solenoid are more as compared to C
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