JEE Main 2025 Physics question
The magnetic field inside a 200 turns solenoid of radius 10 cm is 2.9 × 10 Tesla. If the solenoid carries a current of 0.29 A, then the length of the solenoid is cm.
Answer: 8
Solution
cm
The magnetic field inside a 200 turns solenoid of radius 10 cm is 2.9 × 10 Tesla. If the solenoid carries a current of 0.29 A, then the length of the solenoid is cm.
cm