Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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![The gap in the circuit seen in Fig. P7.87 will arc over
whenever the voltage across the gap reaches 45 kV.
The initial current in the inductor is zero. The value
of B is adjusted so the Thévenin resistance with
respect to the terminals of the inductor is -5 k2. R
a) What is the value of B?
b) How many microseconds after the switch has
been closed will the gap arc over?
Figure P7.87
5kN
40 V
20 kn3 Bi,
200 mH Gap
[a]](https://content.bartleby.com/qna-images/question/3bdea5d7-e5ec-421a-9def-1c3b9854abe8/f8417013-0e65-4e7a-b72d-fe7860752042/6es4ase_processed.jpeg)
Transcribed Image Text:The gap in the circuit seen in Fig. P7.87 will arc over
whenever the voltage across the gap reaches 45 kV.
The initial current in the inductor is zero. The value
of B is adjusted so the Thévenin resistance with
respect to the terminals of the inductor is -5 k2. R
a) What is the value of B?
b) How many microseconds after the switch has
been closed will the gap arc over?
Figure P7.87
5kN
40 V
20 kn3 Bi,
200 mH Gap
[a]
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