12th Class
Physics
Sample Paper
Physics Olympiad Sample Paper-2
question_answer
A 22 cm long solenoid having total number of turns 1000 consists of a core of cross- sectional area 4 \[c{{m}^{2}}\]. Half portion of the core consists of air and half portion is made of iron (relative permeability 500). The self-inductance of the solenoid is