A silicon pnp bipolar transistor at T = 300 K has a B-E cross-sectional area of ABE = 5 × 10-4 cm, neutral base width of x,-0.70 ㎛, a neutral emitter width of x,-0.50 μm. and uniform doping concentrations of N,-5 × 1017 cm-3, Ns = 1016 cm-3, and Nc-1015 cm-3. Other transistor parameters are DB-10 cm2/s, D.-15 cm2/s, TED-Tm-5 × 10-7 s, and Tco-2 × 10-6 s. The transistor is biased in the forward-active mode and the recombination factor is δ = 0.995. Determine the collector current for (a) VEB-0.550 V. (b) 1.-0.80 μA, and

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information