Flux linked with each turn of the solenoid is, φ=2.8×10−3‌Wb ∴ Total magnetic flux of the solenoid is, ‌φ‌net ‌=Nφ ‌φ‌net ‌=1500×2.8×10−3=4.2‌Wb Flux can also be given by, φ=LI ∴‌‌ The self-inductance of the solenoid is, ‌L=‌