A single-phase two-winding transformer is rated 20 kVA, 480/120 volts, 60 Hz. During a short-circuit test, where rated current at rated frequency is applied to the 480-volt winding (denoted winding 1), with the 120-volt winding (winding 2) shorted, the following readings are obtained: V1=35 volts, P1 = 300 W. During an open-circuit test, where rated voltage is applied to winding 2, with winding 1 open, the following readings are obtained: I2 =12 A, P2 = 200 W. Find the following: a. From the short-circuit test, determine the equivalent series impedance Zeq1 =Req1 + jXeq1 referred to winding 1. Neglect the shunt admittance. b. From the open-circuit test, determine the shunt admittance Ym = Gc jBm referred to winding 1. Neglect the series impedance.

When alternating current flows through a conductor

For single phase overhead line having solid conductors of diameter 1 cm spaced 60 cm between centers, the inductance in mH/km is

In recent years, energy producers have been at odds with activists who oppose the construction of new pipelines that could transport liquefied natural gas (LNG) to markets in the United States and abroad. Coalitions of citizens’ groups have voiced their concerns about the potential threat that new pipelines might pose to the environment and public safety. As a result, energy producers and the government have sought alternative ways to transport LNG within the confines of current law. In 2015 the United States Pipeline and HazardousMaterials Safety Administration (PHMSA) issued the first permit for transporting LNG by rail. This bureaucratic agency, which is part of the Department of Transportation, expanded the practice in 2017. Citizens’ groups voiced similar concerns about the transportation of LNG by rail but could not muster enough support in Congress for a new law. The presidential administration at the time responded to pressure from industry groups by supporting the expansion of permits, setting new rules and regulations to make it easier to transport LNG by rail. In 2019, without further direction from Congress, the PHMSA established new safety requirements and expanded the number of permits available. Respond to parts A, B, and C. A. Describe the power the bureaucratic agency used in the scenario. B. Explain how Congress could counteract the use of the power described in part A. C. Explain how the citizens’ groups in the scenario illustrate the concept of pluralist democracy.

A. Using the table, identify the president who appointed the highest percentage of women to the federal district courts. B. Describe a similarity or difference between Republican and Democratic presidents’ nominees to federal district courts with regard to the political party of the people they nominate. C. Explain how that similarity or difference may affect the judicial decisions of the federal district courts with regard to civil liberties. D. Explain how the number and party affiliation of federal district court appointees affects presidential influence and power.   

This question requires you to compare a Supreme Court case you studied in class with one you have not studied in class. A summary of the Supreme Court case you did not study in class is presented below and provides all of the information you need to know about this case to answer the prompts. Cohen v. California (1971) In 1968 Paul Cohen wore a jacket displaying an obscene anti-war statement while entering a Los Angeles courthouse. Cohen was arrested and charged under a California statute that prohibited “maliciously and willfully disturb[ing] the peace and quiet of any neighborhood or person [by] offensive conduct.” Cohen asserted that he wore the jacket in protest of the Vietnam War. Cohen was convicted in a Los Angeles court and sentenced to 30 days in jail. In the subsequent case (1971), the Court ruled in a 5–4 decision in favor of Cohen, overturning his conviction. In the majority opinion, Justice John Marshall Harlan rejected the argument that the state could restrict the words on Cohen’s jacket as offensive conduct. Harlan reasoned that “[O]ne man’s vulgarity is another’s lyric,” warning that “government might soon seize upon the censorship of particular words as a convenient guise for banning the expression of unpopular views.” A. Identify the civil liberty that is common to both Schenck v. United States (1919) and Cohen v. California (1971). B. Explain how the facts in Schenck v. United States and Cohen v. California resulted in different holdings.C. Explain how the decision in Cohen v. California reflects the democratic ideal of limited government.

At a minimum, 15-ampere branch circuits are required in _______.

Ceiling outlet boxes used exclusively for lighting are required to be suitable to support a luminaire weighing a minimum of _______ .

Hallways ____ feet or longer in homes must have at least one receptacle outlet.

A dual-rated conductor marked THHN/THWN is rated ____ when used in dry locations.