CUET Preparation Today
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: |
$μ_0n I$ $\frac{μ_0n I}{r}$ $\frac{μ_0n I}{r^2}$ $\frac{μ_0n I}{2}$ |
$\frac{μ_0n I}{2}$ |
The correct answer is Option (4) → $\frac{μ_0n I}{2}$ |
