A solenoid of length $50 \mathrm{~cm}$ having 100 turns carries a current of $2.5 \mathrm{~A}$. The magnetic field at one end of the solenoid is

Question

$6.28 \times 10^{-4} \mathrm{~T}$

$1.57 \times 10^{-4} \mathrm{~T}$

$9.42 \times 10^{-4} \mathrm{~T}$

$3.14 \times 10^{-4} \mathrm{~T}$

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