MHT CET202013 Oct 2020Morning ShiftPhysicsElectromagnetic InductionActual
A toroidal solenoid with air core has an average radius ' R ^ , number of turns ' N ^ and area of cross-section 'A'. The self-inductance of the solenoid is (Neglect the field variation across the cross-section of the toroid)
Options
- A₀ ~N ² ~A R
- B₀ ~N ² ~A 2 R
- C₀ NA 2 R
- D₀ NA R
Correct answer
B. ₀ ~N ² ~A 2 R
Step-by-step solution
Theory question.