Engineering, 03.04.2021 14:03 Rayzamartinez2757
The external power efficiency of a planar gaas led is 1.5% when the forward current is 50 ma and the potential difference across its terminals is 2 v. Estimate the optical power generated within the device if the transmission factor at the coated gaasair interface is 0.8.
Answers: 2
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Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.
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Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.
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Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
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The external power efficiency of a planar gaas led is 1.5% when the forward current is 50 ma and the...
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