Two coaxial solenoids are made by winding thin insulated wire over a pipe of cross-sectional area $A = 10\ cm^2$ and length$= 20\ cm$. If one of the solenoid has $300$ turns and the other $400$ turns, their mutual inductance is
$\mu_{0}=4 \pi \times 10^{-7} \;TmA ^{-1}$
Two coaxial solenoids are made by winding thin insulated wire over a pipe of cross-sectional area $A = 10\ cm^2$ and length$= 20\ cm$. If one of the solenoid has $300$ turns and the other $400$ turns, their mutual inductance is
$\mu_{0}=4 \pi \times 10^{-7} \;TmA ^{-1}$
- [AIEEE 2008]
- A
$2.4$$\pi $ $\times$ $10^{-4}$ $H$
- B
$2.4$ $\pi $ $\times$ $10^{-5}$ $H$
- C
$4.8$$\pi $ $\times 10^{-4}$ $H$
- D
$4.8$ $\pi $ $\times$ $ 10^{-5} $ $H$
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- [NEET 2021]
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- [IIT 1998]