State the functions of the components associated with the DOL starter
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- 16.(i). Explain the mechanism of avalanche breakdown and Zener breakdown. With the help of V-I characteristics show how a Zener diode is used as voltage regulator. 16.(ii). Write short note on plate earthing with relevant diagramThe reverse voltage blocking capacity of a GTO is small due to the presence of______________. a. anode opens b. cathode opens c. anode shorts d. cathode shortsDps Please explain the solution steps if possible
- 1- A). Which of the following could be used as a discharge device in an inductive AC circuit? a) resistor b) diode c) metal oxide varistor d) "a" and "c", not "b" B. What is the purpose of a discharge device used in conjunction with opening a highly inductive circuit? a) to minimize the possibility of damage to the circuits insulation as a result of a high induced voltage b) to minimize the possibility of endangering the life of the person opening the controlling switch c) to allow the magnetic field to gradually collapse, thus limiting the value of the self-induced ernf d) all of the above C. The high voltage induced by an inductor when its circuit is opened could be used constructively for a) an automotive ignition system b) an electric fence c) both "a" and "b" d) neither "a" nor "b"4. Explain the relationship between back emf E, terminal voltage V and coil voltage drop IR in DC motor and generator respectively. i. Describe how the field strength affect the performance of DC motor and generator. ii. Explain how an external resister changes the DC motor and generator performance.Hi Just need some clarity with question "b", with estimation of time required for charge and discharge phases. Thanks greatly.