Magnetic Field of a Solenoid (JEE Mains) | ExamDuo
Ampere’s lawMedium
Magnetic Field of a Solenoid
The magnetic field inside a 200 turns solenoid of radius 10 cm is 2.9 × 10–4 Tesla. If the solenoid carries a current of 0.29 A, then the length of the solenoid is __________ π cm.