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A power transistor is specified to have a maximum junction temperature of 150C. When the device is operated at this junction temperature with a heat sink, the case temperature is found to be 97°C. The case is attached to the heat sink with a bond having a thermal resistance θCS =0.5°C/W and the thermal resistance of the heat sink θSA =0.1°C/W. If the ambient temperature is 25°C, what is the power being dissipated in the device? What is the thermal resistance of the device, θJC , from junction to case?
Fifteen kg of the carbon dioxide (CO2) gas is fed to a cylinder having a volume of 20 m3 and initially containing 15kg of CO2 at a pressure of 10bar. Later a pinhole develops and the gas slowly leaks from the cylinder. Determine
Determine the magnitudes of the components of force F = 400 N acting parallel and perpendicular to segment BC of the pipe assembly.
Show that the RCP is not solvable by continuous state feedback - Compute the reach control indices and Using the algorithm shown in lecture, solve the RCP by discontinuous PWA feedback.
Some home ISDN "modems" will combine two BRI channels together. What would the data rate be if you could use both channels simultaneously for data transmission?
The term nuclear power refers to the production of electrical energy via controlled nuclear reactions. These reactions generate heat that, in turn, creates steam that runs the generators to produce electricity
The pressure drop in a venturi meter varies only with the fluid density, pipe approach velocity, and diameter ratio of the meter. A model venturi meter tested in water at 20°C shows a 5-kPa drop when the approach velocity is 4 m/s.
an office of a state license bureau has two types of arrivals. individuals interested in purchasing new plates are
1. The fatigue life for a certain alloy at stress levels of σ1, σ2, and σ3 is 10,000, 50,000, and 500,000 cycles, respectively. If a component of this material is subjected to 2500 cycles of σ1 and 10,000 cycles of σ2, estimate the remaining lifet..
1. Outline the role of the P&I clubs. 2. State the benefits of belongings to a P&I club.
You are required to brainstorm 50 ideas for your project. You are encouraged to ask your colleagues and friends to participate in this session with you. A good group size is four people and only one of those people may come from this class.
What is the definetion of hydrophones and how it works? What is the definetion of MEMS and how it works?
(a) Use Parseval's theorem for the DFT to derive a relationship between ∑ | Xc1[k] |2 and ∑ |x[n]|2.
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