NEET-XII-Physics
exam-1 year:2016
- #42A long solenoid has 1000 turns. When a current
of 4A flows through it, the magnetic flux linked with
each turn of the solenoid is 4 × ``10^{-3}`` Wb. The self
inductance of the solenoid is :-
(1) 4H
(2) 3H
(3) 2H
(4) 1HdigAnsr: 4Ans : 4
Sol. Flux linked with each turn = 4 × 10-3 Wb
∴ Total flux linked = 1000[4 × 10-3] Wb
total = 4 &implies; L i = 4 &implies;L = 1H