Question

An infinite straight conductor carrying current 2 I is split
into a loop of radius r as shown in fig. The magnetic field at
the centre of the coil is
(a) μ₀/4π 2(π + 1)/r
(b) μ₀/4π 2(π - 1)/r
(c) μ₀/4π (π + 1)/r
(d) zero

Answer 1

Answer:

An infinite straight conductor carrying current 2 I is split

into a loop of radius r as shown in fig. The magnetic field at

the centre of the coil is

(a) μ₀/4π 2(π + 1)/r

(b) μ₀/4π 2(π - 1)/r

(c) μ₀/4π (π + 1)/r

(d) zero