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The device in the schematic diagram below is a viscosity pump. It consists of a rotating drum inside of a stationary case. The case and the drum are concentric. Fluid enters at A, flows through the annulus between the case and the drum, and leaves at B.
The pressure at B is higher than that at A, the difference being ?ρ: The length of the annulus is L. The width of the annulus h is very small compared to the diameter of the drum, so that the flow in the annulus is equivalent to the flow between two flat plates.
Assume the flow to be laminar. Find the pressure rise and efficiency as a function of the flow rate per unit depth.
An absolute optical rotary encoder has five tracks. How many bits is the output, and what is the resolution in degrees per state (that is, degrees per LSB)
if the 150 lb man fires the o.2lb bullet with a horizontal muzzle velocity of 3000 fts measured relative to the 600lb
Design a voltage-divider bias network using a supply of 24V, a transistor with a Beta of 110, and an operating point of IC = 4mA, and VCE = 8V. R2 = 7.5k. Choose VE = (1/8)VCC
A current i(t) = 10r(t) mA is applied to a 10 mF capacitor for t > 0, where r(t) is the ramp function. At t= 0, the capacitor voltage was zero. The voltage across the capacitor at t = 2 s is
A MIMO channel has a single cluster with the directional cosine ranges as E>t = E>r = [0, 1]. Compute the number of degrees of freedom of an n × n channel as a function of the antenna separation Llt = Llr = Ll.
The open - loop transfer function for a unity feedback system isG(s) = K / s4 +7 s3 +9s2 +4s. Find the range of values of K for stability of the close -loop system.
What combinations of the available values would you use in series to achieve this total resistance?
Find the intrinsic gain of an NMOS transistor fabricated in a process for which k'n=200uA/V^2 and V'A=20Vum. The transistor has a 0.5-um channel length and is operated at Vov = 0.25. If a 2-mA/V transconductance is required, what must Id and W be
calculate the apparent power and the power factor.
Using 4-bit numbers to save space, multiply 3ten x 4ten in binary.
Define induction motor and explain its principal of work
A three-phase Y- connected load is rated at 240 volts with power factor .95 (lagging), if the total apparent power is 240 KVA, compute: a. the phase currents (in polar form). There are 3 values. b. the active and the reactive power of the load at it..
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