Q1) Calculate the total electric field intensity at the point (1, 1, 1); if two infinite surface charge densities of 70 nC/m² and -80 nC/m² are located at x = -3 m and y = 4 m, respectively, in free space. Draw the surfaces and the point.

All answers should be written in complete sentences. Calculations should be shown in detail, and Codereferences should be cited when appropriate. Unless otherwise stated, all conductors are copper type THHN, and the supply is AC. 1. What is the minimum conductor size, overload protection, and inverse-time circuitbreaker rating for a circuit supplying a 230-volt, 3-phase, code A, 40°C, 75-horsepower synchronous motor operating at an 80% power factor with a nameplate full-load current of 185 amperes?

TII 8.) 4 – 3 kW, 230 V and 3 – 8.5 kW, 230 V clothes dryers are to be placed in a building, the total VA loading to be used for these in the computation for service entrance conductor is: A. 24375 B. 37500 C. 33750 D. 36000

Draw the schematic diagram of Induction type energy meter and explain the construction of the same.( A- BI !!

How to verify the validity of the nodal analysis technique in solving electrical networks?

Fill in the blanks: Q. Expansion of FDMA is_____________.

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 3. Which of the following statements about grounding electrical equipment is true?A. If no wire-type equipment grounding conductors are present with the branch circuits, the equipment grounding terminal bar isn't required.B. Grounding electrical equipment increases the possibility of metal parts remaining energized.C. The nonmetal parts of some electrical equipment are required to be connected to an equipment grounding conductor. D. Equipment grounding conductors can be spliced together outside of a grounded metal box. 4. Which of the following is a condition that must be met in order to qualify for the exemption…

what is the unique feature fore fire alarm system by arduino?

17. Define breakdown voltage?

1. The maximum electrical trade size of intermediate conduit is____________.      a. 125 mm      b. 100 mm      c. 24 mm      d. 12 mm