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The network shown in figure is a part of...

The network shown in figure is a part of a complete circuit. If at a certain instant the current 'J' is 5 A and is decreasing at the rate of `10^3 As^(-1)`, then `V_A - V_B` is :

A

5 V

B

10 V

C

15 V

D

20 V

Text Solution

Verified by Experts

The correct Answer is:
C
`V_(A)=iR+E-L(di)/dt=V_(B)`
`rArrV_(A)-V_(B)=5+15-5xx10^(-3)xx10^(3)=15V`.
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