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Assuming a fixed distance between parallel plates with a uniform field, and assuming unchanged Townsend's coefficients, the pressure is changed and the breakdown voltage is measured with the following results: At a pressure 630 torr the breakdown voltage is found to be 340 V. At a pressure 830 torr the breakdown voltage is found to be 360V. Answer Q29 & Q30 ittee Q.29. Find the value of the pressure for minimum breakdown voltage according to Paschen's law. C. 593.92 torr D. 553.92 tom A. 527. 92 torr B. 509.92 torr Q. 30. Find the value of the minimum B. 327.41 V A. 337.41 V breakdown voltage according to Paschen's law. C. 377.41 V D. 357.41 V

Assuming a fixed distance between parallel plates with a uniform field, and assuming unchanged Townsend's coefficients, the pressure is changed and the breakdown voltage is measured with the following results: At a pressure 630 torr the breakdown voltage is found to be 340 V. At a pressure 830 torr the breakdown voltage is found to be 360V. Answer Q29 & Q30 ittee Q.29. Find the value of the pressure for minimum breakdown voltage according to Paschen's law. C. 593.92 torr D. 553.92 tom A. 527. 92 torr B. 509.92 torr Q. 30. Find the value of the minimum B. 327.41 V A. 337.41 V breakdown voltage according to Paschen's law. C. 377.41 V D. 357.41 V

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
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please solve parts 29 and 30

Assuming a fixed distance between parallel plates with a uniform field, and assuming unchanged Townsend's coefficients, the pressure is changed and the breakdown voltage is measured with the following results: apresure 180 r the breakdown voltage is found to be 360V. Answer Q29 & Q30 Q.29. Find the value of the pressure for minimum breakdown voltage according to Paschen's law. C. 593.92 torr D. 553.92 tom A. 527. 92 torr B. 509.92 torr Q. 30. Find the value of the minimum breakdown voltage according to Paschen's law. C. 377.41 V D. 357.41 V A. 337.41 V B. 327.41 V Q. 31. A 4 kV, 110 Hz Schering bridge with a grounded detector as shown in fig. 4 has C-100 PF. In a test on an insulator, the balance was obtained with C4-0.2 µF, R4-2102, and R3- 140 2. By removing the insulator from the measuring system, the balance will be reached at R3-700 2 and C4-0.004 µF. Take into account the system stray capacitance and leakage and find the insulator parallel resistance Rp.: A. 306.62 MO B. 316.62 MD2 C,326.62 MO D. 336.62 MN Q. 32. A generating voltmeter is used to measure a DC voltage. The value of the varying capacitance is given by 14+11 sin cot pF. If the current generated is 4cos ut A, and if the speed of the synchronous motor driving the generating voltmeter is 700 rpm, then the applied voltage is: A. 6.201 kV B. 7.751 kV C. 4961 kV D. 3.969 kV
Transcribed Image Text:Assuming a fixed distance between parallel plates with a uniform field, and assuming unchanged Townsend's coefficients, the pressure is changed and the breakdown voltage is measured with the following results: apresure 180 r the breakdown voltage is found to be 360V. Answer Q29 & Q30 Q.29. Find the value of the pressure for minimum breakdown voltage according to Paschen's law. C. 593.92 torr D. 553.92 tom A. 527. 92 torr B. 509.92 torr Q. 30. Find the value of the minimum breakdown voltage according to Paschen's law. C. 377.41 V D. 357.41 V A. 337.41 V B. 327.41 V Q. 31. A 4 kV, 110 Hz Schering bridge with a grounded detector as shown in fig. 4 has C-100 PF. In a test on an insulator, the balance was obtained with C4-0.2 µF, R4-2102, and R3- 140 2. By removing the insulator from the measuring system, the balance will be reached at R3-700 2 and C4-0.004 µF. Take into account the system stray capacitance and leakage and find the insulator parallel resistance Rp.: A. 306.62 MO B. 316.62 MD2 C,326.62 MO D. 336.62 MN Q. 32. A generating voltmeter is used to measure a DC voltage. The value of the varying capacitance is given by 14+11 sin cot pF. If the current generated is 4cos ut A, and if the speed of the synchronous motor driving the generating voltmeter is 700 rpm, then the applied voltage is: A. 6.201 kV B. 7.751 kV C. 4961 kV D. 3.969 kV
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