The work done by external source moving a charge Q is dependant on the path taken during the displacement of the charge Q. Select one: a. False b. None of the above c. True
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- 20.a. What's the primary disadvantage of using copper conductors?A. DurabilityB. CostC. AvailabilityD. Weight20.b. The NEC requires that each service-disconnecting means be suitable forA. hazardous locations.B. disconnecting the meter.C. wet conditions.D. the prevailing conditions 20.c. As a general rule, each building or structure is limited to a single service. What's an automatic exceptionto this rule?A. A second service deemed suitable for useB. A second service having the proper markingsC. Emergency systems or fire pumpsD. Higher building occupancyThe following problems refer to grounding requirements. Give the source of yourresponses.1. What is the proper size copper grounding electrode conductor for a 100-ampere service that consists of 3/0 AWG ungrounded conductors?The following problems refer to grounding requirements. Give the source of yourresponses. 1. What is the minimum size copper grounding electrode conductor for a service withthree sets of parallel 350 kcmil conductors (three conductors per phase)?
- equipment grounding 1. The only exception to the need for all information technology equipment to be satisfactorily grounded is where the equipment is A. DC powered.B. backup generator powered. C. double-insulated.D. isolated equipment. 2. Which section of the National Electrical Code lists sizing requirements for wire-type equipment grounding conductors? A. 250.66 B. 250.118 C. 250.4 D. 250.122.Calculate the unknown voltages, currents, and powers and properly label theschematic.Answer only if ? sure.. answer asap please.
- In a room two lamps L1 and L2 of 300 candela and 500 candela respectively are situated100 m apart. The height of L1 above the ground level is 10 m and that of L2 is 20 m. If an illumination photometeris placed at the centre of the line joining the two lamp posts, calculate; (i) Illumination at the centre of the line joining the two lamp posts due to lamp L1 (ii) Illumination at the centre of the line joining the two lamp posts due to lamp L2 (iii) Reading of illumination photometerQuestion Z Full explain this question and text typing work only We should answer our question within 2 hours takes more time then we will reduce Rating Dont ignore this line .please answer with explanation.. answer it ASAP..