JEE Mains · Physics · STD 12 -6. Electromagnetic induction
As per the given figure, if \(\frac{ dI }{ dt }=-1 A / s\) then the value of \(V _{ AB }\) at this instant will be \(................V\).
- A \(31\)
- B \(32\)
- C \(33\)
- D \(30\)
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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