Question

Magnetic field at the centre of a current carrying circular loop having 1 A current and number of turns one (radius of the loop is 1m ) will be *​

Answer 1

Given:

Current is 1 Ampere and radius of loop is 1 metre.

To find:

Magnetic Field Intensity ?

Calculation:

The general expression of magnetic field intensity at centre of ring is :

$B = \dfrac{ \mu_{0}(i) }{4\pi r} \times 2\pi$

$\implies B = \dfrac{ \mu_{0} \times 1}{4\pi \times 1} \times 2\pi$

$\implies B = \dfrac{ \mu_{0} }{4\pi } \times 2\pi$

• $\mu_{0}/4\pi$ = 10^(-7)

$\implies B = {10}^{ - 7} \times 2\pi$

$\implies B = 2\pi \times {10}^{ - 7} \: T$

So, field intensity is 2π × 10^(-7) Tesla.