A coil had 100 turns. The radius of each turn is 20cm. An iron rod (μ – InterviewSolution

1.	A coil had 100 turns. The radius of each turn is 20cm. An iron rod (μ_r=35) is introduced inside it. Find the magnetic field at the centre when the current in the coil is 2A. (1)0.022A (2)0.22A (3)0.33A (4)0.033A
Answer» A coil had 100 turns. The radius of each turn is 20cm. An iron rod (μ_r=35) is introduced inside it. Find the magnetic field at the centre when the current in the coil is 2A. (1)0.022A (2)0.22A (3)0.33A (4)0.033A

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