A long straight wire carries a current of

PHYSICS · Single correct · CBSE · Physics · Magnetic Effects of Electric Current · Magnetic Effects of Electric Current

Problem

15\,\text{A}

. Calculate the magnitude of the magnetic field at a point

4\,\text{cm}

from the wire in vacuum. (a)

1.5\times10^{-4}\,\text{T}

(b)

3.75\times10^{-5}\,\text{T}

(c)

7.5\times10^{-5}\,\text{T}

(d)

7.5\times10^{-6}\,\text{T}