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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 k V. 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. a) What is the value of B? b) How many microseconds after the switch has been closed wll the gap arc over? Figure P7.87 5 kN 20 kn3 Bi, 200 mH Gap 40 V [al

The gap in the circuit seen in Fig. P7.87 will arc over whenever the voltage across the gap reaches 45 k V. 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. a) What is the value of B? b) How many microseconds after the switch has been closed wll the gap arc over? Figure P7.87 5 kN 20 kn3 Bi, 200 mH Gap 40 V [al

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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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]
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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