First slide
Inductance
Question

The network shown in the figure is a part of a complete circuit. If at a certain instant the current i is 5A and is decreasing at the rate of 103 A/s then VA- VB is

Moderate
Solution

By using Kirchhoff's voltage law

VAiR+ELdidt=VB VBVA=15 -(5)(1)-(0.005)(-1000) VBVA=15V

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