Exam Questions Papers - Engineering

Q1:

Two infinitely long wires carrying current are as shown in the figure below. One wire is in the y-z plane and parallel to the y-axis. The other wise is in the x-y plane and parallel to the x-axis. Which components of the resulting magnetic field are non-zero at the origin?

A x, y, z components

B x, y components

C y, z components

D x, z components

ANS:D - x, z components

Apply right hand thumb rule.