Magnetic field at the center of the loop?

What is the magnetic field at the center of the loop in the figure ?

Answer 1

Field due to the straight part = µ0 i / (2πR)
Field due to the circle part = µ0 i / (2R)

Add the two to get the answer 4.14*10^-4 Tesla.

Answer 2

use your thumb and thoughts. upload up all the contributions to the B field from the differential aspects of the present. hint, it rather is simpliefied via actuality the addition of two aspects, the circle and the right now line, that have textbook thoughts (seem them up indoors the applicable financial disaster of your textbook).

Answer 3

use your thumb and brain. add up all the contributions to the B field from the differential elements of the current. Hint, it can be simpliefied as the addition of two elements, the circle and the straight line, which have textbook solutions (look them up in the relevant chapter of your textbook).

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