Question

Same current I flows in two parallel conductors distant 2d as shown. The strength of magnetic field at a point P equidistant from both conductors is–

• A. $\frac { \mu _ { 0 } \mathrm { Id } } { 4 \pi \mathrm { a } }$
• B. $\frac { \mu _ { 0 } \mathrm { Id } } { 2 \pi \mathrm { a } }$
• C.
• D.

Answer 1

Answer: (D)

Answer 2