Study the given information.
Consider the magnitude B of magnetic field at distance r from a straight wire carrying current I.
(i) B increases as I increases
(ii) B decreases as r increases.
(iii) Magnetic field line forms a concentric circle of radius r with centre at the wire.
Select the correct option
1
All (i), (ii) and (iii) are correct
2
Both (ii) and (iii) are correct
3
Both (i) and (iii) are correct
4
Only (i) is correct