$A$ solenoid of length $0.25 \ m$ has a radius of $1 \ cm$ and is made up of $500$ turns. It carries a current of $2.5 \ A$. What is the magnitude of the magnetic field inside the solenoid? (Take $\mu_0 = 4 \pi \times 10^{-7} \ SI$ units).

  • A
    $6.28 \times 10^{-3} \ T$
  • B
    $6.28 \times 10^{-2} \ T$
  • C
    $6.28 \times 10^{-4} \ T$
  • D
    $6.28 \times 10^{-1} \ T$

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