Question

A cell is connected between the points A and C of a circular conductor ABCD with O as centre and angle AOC = 60⁰. If B₁ and B₂ are the magnitudes of the magnetic fields at O due to the currents in ABC and ADC respectively, then ratio $\frac { \mathrm { B } _ { 1 } } { \mathrm {~B} _ { 2 } }$ is–

• A. 1
• B. 2
• C. 5
• D. 6

Answer 1

Answer: (A)

1

Answer 2

\ Net magnetic field at centre is zero \B₁ = B₂

\ = 1