Two coaxial solenoids of different radius carry current I in the same direction. `
Channel: Doubtnut
Date: 2020-07-05

Two coaxial solenoids of different radius carry current I in the same direction. `vec(F_1)` be the magnetic force on the inner solenoid due to the outer  one and `vec(F_2)` be the magnetic force on the outer solenide due to the inner one. Then