Two coaxial solenoids of different radii carry current I in the same direction. Let `vecF_(1)` be the magnetic force on the inner solenoid due to the outer one and `vecF_(2)` be the magnetic force on the outer solenoid due to the inner one. Then : `vecF_(1)` is radially inwards and `vecF_(2)` is radially outward

Options

A. `vecF_(1)` is radially inwards and `vecF_(2)=0`
B. `vecF_(1)` is radially outwards and `vecF_(2)=0`
C. `vecF_(1)=vecF_(2)=0`
D. `vecF_(1)` is radially inwards and `vecF_(2)=0` is radially outwards

Answer

C

Explanation

Force in a current carrying loop kept in a uniform magnetic field is zero.