Answer:
9.916\times 10^{-4}T
Explanation:
Diameter of toroid is 15 cm =0.15 m
So length of the toroid is [tex]l=\pi d=3.14\times 0.15=0.471\ m[/tex]
Number of turns of the toriod is given as 555
Current through the toroid is 0.670 A
Magnetic field [tex]B=\mu _0ni=\mu _0\frac{N}{L}i=4\pi \times 10^{-7}\times \frac{555}{0.471}\times 0.670=9.916\times 10^{-4}T[/tex]
