A source has the half-power radiation angle 20° (so that the total emission cone is 40°) as measured from the normal to the emitting surface. Compute the coupling efficiency into a multimode SI fiber having a NA of 0.2.
![Expression for coupling efficieny in a opti cal fiber is coupling efficieny [sin][NA] = 0.00468 (or) 0.468%](http://img.homeworklib.com/questions/66aaea70-9944-11eb-bba6-259b35c3fe5c.png?x-oss-process=image/resize,w_560)
A source has the half-power radiation angle 20° (so that the total emission cone is 40°)...
A controlled half-wave rectifier has an RL load with R 20 ohm and L 40 mH. The source is 120 V rms at 60 Hz The delay angle required to produce an average current of 2.0 A I output RMS I input RMS Apparent power and power factor Skitch Vout, Iout, and V diod
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
summarizr the followung info and write them in your own words and break them into different key points. 6.5 Metering Chamber: 6.5.1 The minimum size of the metering box is governed by the metering area required to obtain a representative test area for the specimen (see 7.2) and for maintenance of reasonable test accuracy. For example, for specimens incorporating air spaces or stud spaces, the metering area shall span an integral number of spaces (see 5.5). The depth of...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...
Chapter overview 1. Reasons for international trade Resources reasons Economic reasons Other reasons 2. Difference between international trade and domestic trade More complex context More difficult and risky Higher management skills required 3. Basic concept s relating to international trade Visible trade & invisible trade Favorable trade & unfavorable trade General trade system & special trade system Volume of international trade & quantum of international trade Commodity composition of international trade Geographical composition of international trade Degree / ratio of...