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JEE Mains · Physics · STD 12 -6. Electromagnetic induction

दिए गए चित्रानुसार यदि \(\frac{\mathrm{dI}}{\mathrm{dt}}=-1 \mathrm{~A} / \mathrm{s}\) है तो इस क्षण पर \(\mathrm{V}_{\mathrm{AB}}\) का मान \(\mathrm{V}\) होगा।

  1. A \(31\)
  2. B \(32\)
  3. C \(33\)
  4. D \(30\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(30\)

Step-by-step Solution

Detailed explanation

\(\frac{ dI }{ dt }=-1 \frac{ A }{ sec }\) \(V _{ A }- IR - L \frac{ dI }{ dt }-12= V _{ B }\) \(V _{ A }-2 \times 12-6(-1)-12= V _{ B }\) \(V _{ A }- V _{ B }=36-6=30\,volt\)
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