Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

A cylindrical coil of radius r, having n turns per unit length and carrying a current I has a magnetic field near its one end equal to:

Options:

$μ_0n I$

$\frac{μ_0n I}{r}$

$\frac{μ_0n I}{r^2}$

$\frac{μ_0n I}{2}$

Correct Answer:

$\frac{μ_0n I}{2}$

Explanation:

The correct answer is Option (4) → $\frac{μ_0n I}{2}$