Explain briefly various theories of breakdown in liquid dielectrics.What are the requirements of a sphere gap for measurement of high voltages? Discuss the advantages and disadvantages of sphere gap for measurements.Determine the Townsend’s first ionization coefficient if a steady current of 500 ?A flows through the plane electrode separated by a distance of 0.4cm when a voltage of 10 kV is applied. A current of 25 ?A flows when the distance of separation is reduced to 0.1 cm and the field is kept constant at the previous value. Find also the value of γ if the breakdown took place when the gap distance was changed to 0.7 cm. Explain briefly various theories of breakdown in liquid dielectrics.What are the requirements of a sphere gap for measurement of high voltages? Discussthe advantages and disadvantages of sphere gap for measurements.Determine the Townsend's first ionization coefficient if a steady current of 500 µAflows through the plane electrode separated by a distance of 0.4cm when a voltage of 10 kVis applied. A current of 25 µA flows when the distance of separation is reduced to 0.1 cmand the field is kept constant at the previous value. Find also the value of y if the breakdowntook place when the gap distance was changed to 0.7 cm. Explain briefly various theories of breakdown in liquid dielectrics.What are the requirements of a sphere gap for measurement of high voltages? Discussthe advantages and disadvantages of sphere gap for measurements.Determine the Townsend's first ionization coefficient if a steady current of 500 µAflows through the plane electrode separated by a distance of 0.4cm when a voltage of 10 kVis applied. A current of 25 µA flows when the distance of separation is reduced to 0.1 cmand the field is kept constant at the previous value. Find also the value of y if the breakdowntook place when the gap distance was changed to 0.7 cm.

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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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Explain briefly various theories of breakdown in liquid dielectrics. What are the requirements of a sphere gap for measurement of high voltages? Discuss the advantages and disadvantages of sphere gap for measurements. Determine the Townsend’s first ionization coefficient if a steady current of 500 ?A flows through the plane electrode separated by a distance of 0.4cm when a voltage of 10 kV is applied. A current of 25 ?A flows when the distance of separation is reduced to 0.1 cm and the field is kept constant at the previous value. Find also the value of γ if the breakdown took place when the gap distance was changed to 0.7 cm.

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