Question

Magnetic field intensity B at the centre of the circular loop is

• A. 0
• B. $\frac { \mu _ { 0 } \mathrm { I } ( 2 \pi - \theta ) } { 4 \pi \mathrm { R } }$
• C.
• D.

Answer 1

Answer: (A)

0

Answer 2

Since current in each segment is proportional to their resistance. B due to arcs are in opposite direction. Hence

Hence (1) is correct.