two infinite wires, carrying currents `i_1 and i_2`., are lying along x-and y-axes, as shown in the x-y plane. Then,

Options

A. locus of points where B is zero is a circle
B. locus of points where B is zero is a line
C. B decay heperbolically along any line parallel to x-axis
D. B decay heperbolically along any line parallel to y-axis

Answer

B

Explanation

(b) Magnetic field may be zero in first and third quadrants.
`(mu_0I)/(2piy)=(mu_I_2)/(2pix)` represents a straight line passing through the
origin.