Two very long, straight, and insulated wires are kept at `90^(@)` angle from each other in xy-plane as shown in the figure. These wires carry currents of equal magnitude I, whose directions are shown in the figure. The net magnetic field at point will be:

Options

A. `(mu_(0)I)/(2 pi d) (hat x + hat y)`
B. `(+mu_(0)I)/( pi d) (hat z)`
C. zero
D. `-(mu_(0)l)/(2 pi d) ( hat x + hat y)`

Answer

c

Explanation

Magnetic fields due to both the wires are equal and opposite to each other at given point, hence net magnetic field at this point is zero. Hence option (c ) is correct.