In (Figure 1), suppose that E - 52.0 V. R= 240.0 N and L=0.140 H. With switch S, open, switch S, is left closed until a constant current is established. Then S, is closed and S, opened, taking the battery out of the circuit. Figure 1 of 1 L. 1:24 am / Part A What is the initial current in the resistor, just after Sa is closed and Si is opened? Express your answer in amperes. VO AE Submit Request Answer Part B What is the current in the resistor at f 4.20x10s? Express your answer in amperes. 1:24 am / Submit Request Anseer

In (Figure 1), suppose that E - 52.0 V. R= 240.0 N and L=0.140 H. With switch S, open, switch S, is left closed until a constant current is established. Then S, is closed and S, opened, taking the battery out of the circuit. Figure 1 of 1 L. 1:24 am / Part A What is the initial current in the resistor, just after Sa is closed and Si is opened? Express your answer in amperes. VO AE Submit Request Answer Part B What is the current in the resistor at f 4.20x10s? Express your answer in amperes. 1:24 am / Submit Request Anseer

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter27: Service-entrance Equipment

Section: Chapter Questions

Problem 44R

See similar textbooks

Similar questions

Dont copy paste need new SOLUTIONs.solve with diagrams with clean Handwriting or understanding solutions A single-phase 60-Hz power line is supported on a horizontal crossarm. The spacing between conductors is 8 ft. A telephone line is supported on a horizontal crossarm 6 ft below the power line. The conductors of the telephone line are AWG No. 14 solid copper (d = 1.6277 mm) spaced 2 ft between centers. The conductors of the power line are AWG No. 2 solid copper (d = 0.2576 in). Find the mutual inductance between the circuits and the voltage per mile induced in the telephone line if the current in the power line is 150 A.
A 2-wire d.c. distributor AB is 600meters long is loaded as under: Distance from A (meters) 150 300 350 450 Load in Amps 100 200 250 300 The feeding point A is maintained at 440V and that of B at 430V. If each conductor has a resistance of 0.01Ω per 100meters, calculate the current supplied from A & the power dissipated in the distributor.
QUESTION 4 What code table do I look in to find allowable ampacities of conductors, not more than three current carrying conductors in a raceway, based on an ambient temperature of 86°F? a Table 310.104(A) b Chapter 9 Table 8 c Table 310.15(B)(16) d Table 250.122
A meeting hall in an organization is to be provided with a lighting installation. The hall is 30 m × 20 m × 8 m (high). The mounting height is 5 m and the required level of illumination is 144 lm/m2. Design a lighting system for the hall with the given data. Lumens/watt for 200-W lamp = 12 and Lumens/ watt for 500-W lamp = 16. Utilization coefficient = 0.6 Maintenance factor = 0.75 space/height ratio=1 Using metal filament lamps, estimate the following: Flux Luman output per 200 W lamp Luman output per 500 W lamp Number of 500W lamps required Number of 220W lamps required Draw the spacing layout of these lamps State the reason if any of these 2 lamps cannot be arranged in the hall with the given specification. What is the significance of ‘room surface maintenance factor’ and ‘utilization factor’ in the lighting design
2. Imagine that you're asked to install an auxiliary grounding electrode at the base of a lighting pole in aparking lot. This auxiliary grounding electrode will be connected to theA. lighting pole's electrical service equipment grounding conductor.B. electrical service's grounding electrode conductor.C. next lighting pole's auxiliary grounding electrode.D. lighting pole's neutral conductor.
A power plant produces 1000MW to supply a city 40km away. Current flows from the power plant on a single wire with resistance through the city and returns via the ground, with negligible resistance. At the power plant the voltage between wire and ground is 115 kV. Determine: (a) the current in the wire, and (b) the fraction of the power lost in transmission.
A copper conductor wire with a total length of 100ft is used in a 15 amp common household circuit has a resistance of 1.62 ohms/1000ft. If the circuit is fully loaded, determine the heat produced by the conductor? (Hint 1W = 3.413Btu/hr) a. 124.40 Btu/hr b. 99.83 Btu/hr c. 8.29 Btu/hr d. 177.50 Btu/hr
A)Suppose component X is a wire. Find the equivalent resistance Reg of the resistor network over the source voltage Vs.B) Suppose component X is 5V battery and Vs = 10V. Using Mesh Analysis to find the in-loop current iA iB iC. Assume the -ve polarity of battery connected to bottom)C) Whhat is the power dissipated/supplied by X in the respective setting?
A 2-wire d.c. distributor AB is 300 metres long. The end A is fed at 205 V and end B at 200 V. Thedistributor is uniformly loaded at 0·15 A/metre length and has concentrated loads of 50 A, 60 A and40 A at points distant 75, 175, 225 m respectively from the end A. The resistance of each conductoris 0·15 Ω per kilometre. Calculate :(i) the point of minimum potential(ii) currents fed at ends A and B
Whale and Kanmuro are two islands located at the Chimera archipelago. These two are separated by a distance of 16 miles. A power link is to be established between them. The power link delivers a maximum power of 584 megawatts at full capacity with an operating voltage of 580 kilovolts. Note that 1 mile is 1.6 kilometers. Solve for the resistivity (in ohm-micrometers) of the cable asusming a conductor diameter of 1.55 centimeters.
q) 150 kv single core cable has a radius of cable of 5cm. The insulation martial has two layers. The relative permittivity of the first and second layers are 6 and 3 respectively. If the minimum electric stress of the first and second layers are 30 kv/cm and 20 kv/cm respectively. Find the maximum electric stress of the first layer.note : subject is : power - underground cabel
Q.)Explain why electricity is the preferred energy carrier. Explain in our words Don't copy