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6. Peak to peak ripple is defined as a) the difference between zero voltage and maximum b) the difference between average de voltage and peak value c) the difference between maximum and minimum de voltage d) the difference between maximum ac and average dc voltages e) the difference between ac (rms) and average de voltages f) none of above 7. a belt speed of 1.5 m/s, charge density of 12 µc/m2 and a belt width 2 m. The maximum charging current is: a) 45 µA b) 50 μΑ c) 72 μΑ d) 81 μΑ e) 115µA f) None of above 8. In a Cockroft-Walton circuit, input voltage 100 kV load current 25 mA, supply frequency 100 Hz, each capacitor 10 nF. The optimum no. of stages for maximum output voltage is а) 1 b) 2 c) 10 d) 35 e) 45 f) None of above

6. Peak to peak ripple is defined as a) the difference between zero voltage and maximum b) the difference between average de voltage and peak value c) the difference between maximum and minimum de voltage d) the difference between maximum ac and average dc voltages e) the difference between ac (rms) and average de voltages f) none of above 7. a belt speed of 1.5 m/s, charge density of 12 µc/m2 and a belt width 2 m. The maximum charging current is: a) 45 µA b) 50 μΑ c) 72 μΑ d) 81 μΑ e) 115µA f) None of above 8. In a Cockroft-Walton circuit, input voltage 100 kV load current 25 mA, supply frequency 100 Hz, each capacitor 10 nF. The optimum no. of stages for maximum output voltage is а) 1 b) 2 c) 10 d) 35 e) 45 f) None of above

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter12: Electronic Control Devices
Section: Chapter Questions
Problem 14RQ
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6. Peak to peak ripple is defined as a) the difference between zero voltage and maximum b) the difference between average dc voltage and peak value c) the difference between maximum and minimum dc voltage d) the difference between maximum ac and average de voltages e) the difference between ac (rms) and average dc voltages f) none of above 7. a belt speed of 1.5 m/s, charge density of 12 µc/m2 and a belt width 2 m. The maximum charging current is: a ) 45 μΑ b) 50 μΑ c) 72 µA d) 81 µA e) 115μA f) None of above 8. In a Cockroft-Walton circuit, input voltage 100 kV load current 25 mA, supply frequency 100 Hz, each capacitor 10 nF. The optimum no. of stages for maximum output voltage is а) 1 b) 2 c) 10 d) 35 е) 45 f) None of above 9. If D is the diameter of the sphere, for better measurements, the gaps 'S' should be such that, a) 0.05 D<S <0.5 D b) 0.05 D<S <0.6 D c) 0.04 D<S<0.5 D d) 0.03 D<S <0.7 D 0.07D < S<0.7 D
Transcribed Image Text:6. Peak to peak ripple is defined as a) the difference between zero voltage and maximum b) the difference between average dc voltage and peak value c) the difference between maximum and minimum dc voltage d) the difference between maximum ac and average de voltages e) the difference between ac (rms) and average dc voltages f) none of above 7. a belt speed of 1.5 m/s, charge density of 12 µc/m2 and a belt width 2 m. The maximum charging current is: a ) 45 μΑ b) 50 μΑ c) 72 µA d) 81 µA e) 115μA f) None of above 8. In a Cockroft-Walton circuit, input voltage 100 kV load current 25 mA, supply frequency 100 Hz, each capacitor 10 nF. The optimum no. of stages for maximum output voltage is а) 1 b) 2 c) 10 d) 35 е) 45 f) None of above 9. If D is the diameter of the sphere, for better measurements, the gaps 'S' should be such that, a) 0.05 D<S <0.5 D b) 0.05 D<S <0.6 D c) 0.04 D<S<0.5 D d) 0.03 D<S <0.7 D 0.07D < S<0.7 D
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