At a point from a long straight conductor carrying current

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

Problem

At a point

2\,\text{cm}

from a long straight conductor carrying current

I

, the magnetic field magnitude is

B_P

. If the current is increased to

1.5\,I

, at what distance from the wire will the magnetic field again be

B_P

? (a)

2.45\,\text{cm}

(b)

3.0\,\text{cm}

(c)

1.33\,\text{cm}

(d)

4.5\,\text{cm}