TS EAMCET Medical 29 Sept 2020 Shift 1 Paper

Consider two solenoids A and B such that LA= 2LB and AA=

1

2

AB, where LA . AA and LB,AB are the length and area of the two solenoids respectively. If the magnetic energy stored in the both solenoids is same. What should be the ratio of their magnetic fields

BA

BB

=