Two long, straight wires are separated by and each carries current into the page. The…

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

Problem

Two long, straight wires are separated by

12\,\text{cm}

and each carries current into the page. The current in wire A is

4.0\,\text{A}

and the current in wire B is

9.0\,\text{A}

. Along the line joining the wires, at what distance from wire A is the net magnetic field equal to zero? (a)

10.8\,\text{cm}

(b)

8.3\,\text{cm}

(c)

3.7\,\text{cm}

(d)

9.6\,\text{cm}