A) Assuming a silicon junction breaks down when its maximum internal electric field Em reaches 300 kV/cm, estimate the breakdown voltage BV of the pn junction with the following characteristics: ND = 1016 cm-3

Emo = 5.03E4 V/cm cross-sectional area: A= (100 micrometers)(100 micrometers)= 10-4 cm2

Xd0 = 3.26E-5 cm = 0.326 micrometers Qj0 = 5.23 pC

xpo = .003 micrometers xn0 = .323 micrometers

b) Repeat if ND is doubled to 2E16 cm-3

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor