Ts Eamcet
Moving Charges And Magnetism
TS EAMCET 2020 (Online) 10th September Morning Shift
MCQ+1 / -02020
A 50 cm long solenoid has winding of 400 turns. What current must pass through it to produce a magnetic field of induction $4 \pi \times 10^{-3} \mathrm{~T}$ at the centre?