Question

a flat coil of 150 turns and diameter of 30.0 cm carries a current of 3.0 A. find the magnetix flux density at the centre of the flat coil

Answer 1

The formula of the magnetic flux density (or the magnitude of the magnetic field) in the center of a coil is:
\[B=\frac{ \mu_0*N*I }{ A }\]
now just plug the values

Answer 2

can u do it now? @fatinazmi

Answer 3

\[B=\frac{ \mu_0*N*I }{ 2R }\]
N=150
R=D/2=15
I=3A

Answer 4

ur latest equation is correct. @sidsiddhartha

Answer 5

yeahh thankk youuu @sidsiddhartha :)