the magnetic field due to a current carrying circular loop of radius 3cm at a pt on the axis at - Physics - Moving Charges And Magnetism

Question

the magnetic field due to a current carrying circular loop of
radius 3cm at a pt on the axis at a distance of 4cm from the center
is 54micro T what will b its value at center of loop?

Neha Gupta · Accepted Answer

Magnetic field ay the axis B = μoIR22(x2+R2)3/2where R is the radius R = 3 cmX = 4 cmMagnetic field at the centreBc = μoI2RBBc = μoIR22(x2+R2)3/2μoI2R  = R3(x2+R2)3/2BBc = 32(16+9)3/2Bc = 12527BBc = 250 micro tesla

the magnetic field due to a current carrying circular loop of radius 3cm at a pt on the axis at a distance of 4cm from the center is 54micro T. what will b its value at center of loop?