Current Electricity and Electrical InstrumentHard
Question
The network shown in figure is a part of a complete circuit. If at a certain instant the current ′i′ is 5 A and is decreasing at the rate of 103 A/sec. then VA − VB is :-
Options
A.5 V
B.10 V
C.15 V
D.20 V
Solution
VA - RI - E - L 
= VB
VA - VB = E + RI + L
= VBVA - VB = E + RI + L
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