The self-inductance of a solenoid of length $31.4 \ cm$,area of cross-section $10^{-3} \ m^2$ having a total number of turns $500$ will be nearly $\left[\mu_0 = 4 \pi \times 10^{-7} \ SI \ unit\right]$.

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

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