V-Design an ADC circuit using OPAMP ( using weighted resistors) (

L.2. The most energy-efficient light source of the HID family is theA. fluorescent lamp.B. metal halide lamp.C. mercury lamp.D. high-pressure sodium lamp.L.3. Which of the following provisions are used to compare ballast quality?A. Bulb size, case material, coil sizeB. Crest factor, power factor, total harmonic distortionC. Crest factor, filament length, total harmonic distortionD. Bulb size, power factor, case material

Which of the following distribution systems would you select for a medical research campus? A) Primary selective system. C) Secondary loop system. B) Distributed radial system. D) Primary and secondary loop system. Authoritative rules for electrical design and installation are contained in which of the following 7) documents? A) ASHRAE Handbook of Fundamentals. B) NFPA 101. C) NEC. The illumination from a point source 4 ft. above a surface is 100 foot-candles, and the surface is normal to the source. What will be the illumination level if the surface is tilted 45°? A) 50 foot-candles. B) 100 foot-candles. C) 71 foot-candles. Which of the following lamp types is generally the most energy efficient? A) Incandescent. C) High intensity discharge. B) LED. D) Fluorescent.

The load current in a system is 100 A. the short-circuit current for the smallest fault is     100 A. An overcurrent capable of carrying a current of 5 A continuously is to be used. (a) Suggest a suitable C.T. ratio                  (b) What will be the current for the smallest fault?            (c) Will the protective C.T be able to faithfully reproduce the fault current?