A long conducting wire having a current I flowing through it, is… | JEE Main 2023 Physics PYQ

MCQEasyJEE Main 2023 · 31 January, Shift 2Biot–Savart Law

A long conducting wire having a current $I$ flowing through it, is bent into a circular coil of $N$ turns. Then it is bent into a circular coil of $n$ turns. The magnetic field is calculated at the centre of coils in both the cases. The ratio of the magnetic field in first case to that of second case is:

A
$N : n$
B
$n^2 : N^2$
C
$N^2 : n^2$
D
$n : N$

Answer & step-by-step solution

Practice more Biot–Savart Law questions

Get unlimited AI-adaptive practice, mastery tracking, and an AI tutor that explains every step - free to start.

Start free trial More on Biot–Savart Law

Answer & step-by-step solution

Practice more Biot–Savart Law questions

Related questions