Electro Magnetic Induction And Alternating Currents Question 572

Question: The inductance of a closed-packed coil of 400 turns is 8 mH. A current of 5 mA is passed through it. The magnetic flux through each turn of the coil is [Roorkee 2000]

Options:

A) 14π,μ0Wb

B) 12π m0Wb

C) 13πμ0Wb

D) 0.4,μ0Wb

Show Answer

Answer:

Correct Answer: A

Solution:

Nφ=Liφ=LiN=8×103×5×103400=107=μ04πwb



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