Question

A current of 1/4π A is flowing through a toroid. It has 1000 turns per meter then value is magnetic field in T along axis is.
(PS : no radius is given)

Answer 1

$\huge\mathfrak\pink{\underline{\underline{AnSwer}}}$

As we know,

Magnetic field outside the toroid is zero

magnetic field at centre of toroid is zero

Due to toroid magnetic field is always inside or aling the circular axis


now,

M.F For Toroid = mu nod n I

putting the given values. ..we get

B = 4 pi x 10^-7 x 1000 x 1/4pi

B = 10^-5T


^_^

Answer 2

Answer:

10^-4

Explanation:

B= meu N I/ 2 PI R= meu N I/ L =meu n I= 4pi .10^-4.1000. (1/4 pi) =

10^-4