Question

Two very long current carrying wires A and B carrying current I₀ (along Z-axis) are placed at (– a, 0) and (a, 0) as shown. Find the value of magnetic field at (0, a)-

• A.
• B.
• C.
• D. $\frac { \mu _ { 0 } \mathrm { I } _ { 0 } } { 2 \sqrt { 2 } \pi \mathrm { a } }$

Answer 1

Answer: (B)

Answer 2

B_Net = $\sqrt { 2 }$B where B =

ŽB_Net = $\frac { \mu _ { 0 } \mathrm { I } _ { 0 } } { 2 \pi \mathrm { a } }$