Test SeriesFree PYQsExamsPricing

JEE Main 2015 Physics question

PhysicsMoving Charges and MagnetismJEE Main 2015

Two coaxial solenoids of different radii carry current I in the same direction. Let be the magnetic force on the inner solenoid due to the outer one and be the magnetic force on the outer solenoid due to the inner one. Then:

Answer: (2)

Solution

The field of a long solenoid is uniform and axial inside and zero outside. The inner solenoid sits in the outer one's uniform axial field, so is radial at

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-115154