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प्रश्न
What is the magnetic flux through one turn of the long solenoid?
पर्याय
\[\Phi_B=NBA=\mu_0nNIA\]
\[\Phi_B=BI=\mu_0nI^2\]
\[\Phi_B=B A=\mu_0nIA\]
\[\Phi_B=\frac{B}{A}=\frac{\mu_0nI}{A}\]
MCQ
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उत्तर
Flux through one turn is magnetic field times cross-sectional area. Substituting \[B=\mu_0nI\] gives \[\Phi_B=\mu_0nIA\].
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