A circular flat coil that has N turns, encloses an area A, and carries a current i, has its central axis parallel to a uniform m agnetic field B in which it is immersed. The net force on the coil is -Zero
-NiAB
-NiB
-NiA
-iBA
Is the answer zero because the coil is placed parallel to the magnetic field?
1 answer:
Answer:
A. Zero
Explanation:
The force on a coil of N turns, enclosing an area, A and carrying a current I in the presence of a magnetic field B, is :
F = N * I * A * B * sinθ
Where θ is the angle between the normal of the enclosed area and the magnetic field.
Since the normal of the area is parallel to the magnetic field, θ = 0
Hence:
F = NIABsin0
F = 0 or Zero
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