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  • As per the given figure, if <img alt="\frac{\mathrm{dI}}{\mathrm{dt

As per the given figure, if \frac{\mathrm{dI}}{\mathrm{dt}}=-1 \mathrm{~A} / \mathrm{s} then the value of V_{AB} at this instant will be V. 

 

 

Option: 1

30


Option: 2

__


Option: 3

__


Option: 4

__


Answers (1)

best_answer

 

I =2A

\begin{aligned} &\frac{\mathrm{dI}}{\mathrm{dt}}=-1 \mathrm{~A} / \mathrm{sec}\\ &V_A-I R-L \frac{d \mathrm{I}}{\mathrm{dt}}-12=V_{\mathrm{B}}\\ &V_A-2(12)+6(1)-12=V_B\\ &V_A-V_B=24+12-6=24+6=30 \end{aligned}

Ans. 30

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chirag

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