Q1. Correct the following statements without changing the underline words: (do not use NOT) 1- The main difference between uncontrolled and controlled rectifier is that the latter uses a freewheeling diode. 2-Produced Ripple from DC chopper is inversely dependent on chopping period. 3- 1-ph uncontrolled rectifier is a double way rectifier since the input current in the AC line is alternating. 4- The FWD is used to prevent the reversal of load voltage when this load contains a back EMF source. 5- In step-up chopper the main function of the diode is smoothing the output voltage to become nearly DC waveform. 6- We mean by practical thyristor is that the voltage drop and recovery time are negligible.

Q1. Correct the following statements without changing the underline words: (do not use NOT) 1- The main difference between uncontrolled and controlled rectifier is that the latter uses a freewheeling diode. 2-Produced Ripple from DC chopper is inversely dependent on chopping period. 3- 1-ph uncontrolled rectifier is a double way rectifier since the input current in the AC line is alternating. 4- The FWD is used to prevent the reversal of load voltage when this load contains a back EMF source. 5- In step-up chopper the main function of the diode is smoothing the output voltage to become nearly DC waveform. 6- We mean by practical thyristor is that the voltage drop and recovery time are negligible.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter12: Batteries And Other Sources Of Electricity

Section: Chapter Questions

Problem 12RQ: 12. How is the A-hr capacity of a lead-acid battery determined?

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