A wire in the form of a circular loop

Asked by admin @ 17/08/2021 in Physics viewed by 359 People

A wire in the form of a circular loop of one turn carrying a current forms a magnetic field B at the center. What will be new value of magnetic induction at the

center, if the same wire is looped into a coil of two turns carrying same current?O 2BO 3BO4 BOі в

Answered by admin @ 17/08/2021

Answer:

B' = 2B

Explanation:

B = Uo n I

I = B / Uo n.---------------- eq 1

I = B' / Uo 2n---------------- eq 2

compare 1 and 2

B /Uo n = B' / Uo 2n

B = B' / 2

B' = 2 B

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