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JEE MAIN 2023
31-01-23 S2
Question
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:
Select the correct option:
A
N : n
B
$n^2: N^2$
C
$\mathrm{N}^2: \mathrm{n}^2$
D
n : N
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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Physics
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