Question:
Two long, straight wires, each carrying a current of $5 A$, are placed along the $X$ - and Y-axes respectively. The currents point along the positive directions of the axes. Find the magnetic fields at the points
(a) (1m, $1 m)$,
(b) $(-1 m, 1 m)$,
(c) $(-1 m,-1 m)$,
(d) $(1 m,-1 m)$.
Solution:
Magnetic field due to wires are of equal magnitude but in opposite direction. So, resultant field $=0$.
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