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प्रश्न
What is the induced EMF in the primary coil?
पर्याय
\[e_p=N_p\Phi\]
\[e_p=-N_s\frac{d\Phi}{dt}\]
\[e_p=-N_p\frac{d\Phi}{dt}\]
\[e_p=-N_p\frac{dt}{d\Phi}\]
MCQ
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उत्तर
Faraday's Law gives the primary EMF as \[e_p=-N_p\frac{d\Phi}{dt}\]. The expression uses the number of primary turns and the rate of change of flux.
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