Question

A long solenoid has 200 turns per cm and carries a current i. The magnetic field at its centre is 6.28 × 10–2 weber/m2. Another long solenoid has 100 turns per cm and it carries a current i/3. The value of the magnetic field at its centre is

Answer 1

Answer:

I don't know sorry for your answer friend

Answer 2

Answer: B2=(pi)/3=1.04

Explanation:

Pls check the attachement. Hope it helps.