S Draw a power supply based on a 2x9V efficient mid-point transformer and a full-wave rectifier plus filtering. If the diodes each have a waste voltage of 0.7V, what will be the maximum voltage of the capacitor? What is the purpose of a zener diode? Give its electrical symbol. ii. B. We use two cables of length 1 = 2 m and of section s = 10 mm² to start a vehicle whose battery is discharged, linked to a battery of 12 V of a second vehicle. Calculate the available voltage for a starter of a petrol vehicle requiring 100 A and a diesel vehicle requiring 250 A. Which conclusion can you give? We give the conductivity of the copper wire y = 6.107s.m-¹. C. Remember that the concentration of free electrons in a metal with atomic mass A, density d and valence v (number of free electrons per atom) is given by the relation n = where N is the Avogadro's constant. Ndv A = 1. We consider an aluminum wire (A 27), density d = 2.7 g.cm-3, resistivity 3.44 u. cm. Calculate the concentration of free electrons (number per m³). 2. Determine the mobility of free electrons in the international system. A. i.

S Draw a power supply based on a 2x9V efficient mid-point transformer and a full-wave rectifier plus filtering. If the diodes each have a waste voltage of 0.7V, what will be the maximum voltage of the capacitor? What is the purpose of a zener diode? Give its electrical symbol. ii. B. We use two cables of length 1 = 2 m and of section s = 10 mm² to start a vehicle whose battery is discharged, linked to a battery of 12 V of a second vehicle. Calculate the available voltage for a starter of a petrol vehicle requiring 100 A and a diesel vehicle requiring 250 A. Which conclusion can you give? We give the conductivity of the copper wire y = 6.107s.m-¹. C. Remember that the concentration of free electrons in a metal with atomic mass A, density d and valence v (number of free electrons per atom) is given by the relation n = where N is the Avogadro's constant. Ndv A = 1. We consider an aluminum wire (A 27), density d = 2.7 g.cm-3, resistivity 3.44 u. cm. Calculate the concentration of free electrons (number per m³). 2. Determine the mobility of free electrons in the international system. A. i.

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter59: Motor Startup And Troubleshooting Basics

Section: Chapter Questions

Problem 12SQ: How is a solid-state diode tested? Explain.

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