Voltage Guides d'étude, Notes de cours & Résumés

In capacitors, what is the purpose of the dielectric? - ANSWER-Prevent arcing within the capacitor Which of the following is true about capacitors in AC circuits? - ANSWER-Current leads voltage all the time What describes a capacitor s ability to store an electrical charge? - ANSWER-Capacitance which of the following statements is correct about polarized electrolytic capacitors? - ANSWER-Voltage polarity must be correct What is the time constant for a circuit with 150k ohms and 2 mic...

NEIEP 300 2023 Exam Questions and Correct Answers How should ammeters be used to take measurements in a circuit - ANSWER Connected in series with the circuit What will happen to the current in a circuit if the resistance is doubled - ANSWER Current will be halved How do you measure voltage in a circuit - ANSWER Meter must be parallel with volt being measured What is the outermost shell of an atom called - ANSWER Valence shell The Nucleus of...

NEIEP 400 Final Exam Version 2 (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What is the result of connecting an ammeter to the terminals of a power supply or other voltage source? Answer: The meter will be damaged. Q: What is correct regarding the transformer? Answer: applied voltage on the primary leads current by 90 degrees Q: What does two solid lines between two coils represent in a transformer?- Answer: Iron core transform...

Hazardous Waste Operations and Emergency Response - HAZWOPER 40 - Final Exam | 50 Questions with 100% Correct Answers | Verified | Latest Update Question: Chronic responses to chemical exposures occurs only a short time after exposure. Answer: False Question: Which of the following is NOT on the "to-do" list for solvents? Answer: Keep solvents in a non-ventilated area. Question: A corrosive is a substance, usually a liquid, which is capable of completely dissolving another ...

CCDS IBHRE LATEST UPDATE ALREADY GRADED A Rheobase the lowest point on a strength duration curve at an infinitely long pulse duration Chronaxie time the pulse width at twice the rheobase value. It approximates the most efficient stimulation pulse duration Charge (formula) Charge= I(current) x T(time) Furman's formula Energy(microjoules)= I(current)xV(voltage)xT(pulse width) Ohms law formula Voltage(electromotive force)= I(current/flow of electrons) x R(resistance to current flow in ohms) F...

NEIEP 400 Final Exam Version 1 (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What is the power available from a 68 kVA transformer connected in open delta configuration ? Answer: 39.44 kVA Q: The secondary winding of an 11,000 volt to 220 volt transformer has 50 windings on the secondary How many turns are on the primary winding ? Answer: 2500 turns Q: A transformer has 728 turns on the primary winding and 56 turns on the secondary ...

NEIEP 600 Final VERIFIED 100% SOLUTIONS 2023//2024 WITH DIAGRAM ILLUSTRATIONS Zener current will decrease Refer to figure 1. If the load resistance R2 is reduced by half what happens what happens to zener diode? 4v Refer to figure 1. The zener diode is designed to breakdown at 6VDC what is the voltage drop across R1 with a constant DC supply of 10VDC 30 rpm An elevators motor rotates at 1200 rpm at contract speed and is geard at a ratio of 40:1. If the motor turns 40 rpm the...

NEIEP 600 Final Exam Version 2 (Latest 2024 / 2025 Update) Questions and Verified Answers | 100% Correct | Grade A Q: What is the time constant for a circuit with 150 K ohms and 2 microfarad capacitor? (TC = R x C) Answer: 0.3 seconds Q: How long will it take for this capacitor to be considered fully charged? Answer: 1.5 seconds Q: The voltage required to cause conduction across the junction in a germa- nium diode is? Answer: 0.3 Q: A 1.5 volt 8 milliamp light emitting diode needs to be operated...

At what torque angle of operation does power typically begin to flow from the generator to the system? A) 90 degrees B) 60 degrees C) 30 degrees D) 10 degrees 10 degrees Choose the answer that best describes the operation of a rotor. A) The stationary part of the transmission system. B) A type of superconductor. C) The stationary element of a generator that has its windings connected to the system. D) The excited (energized) field winding that rotates inside the stator to induce current into the...

AQA AS PHYSICS 7407/1 Paper 1 Question Paper + Mark scheme [MERGED] June 2022 *JUN* IB/M/Jun22/E8 7407/1 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 TOTAL Materials For this paper you must have: • a pencil and a ruler • a scientific calculator • a Data and Formulae Booklet • a protractor. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions in...

Traffic Signal Technician Level II (Latest 2024 / 2025 Update) Questions and Verified Answers | Grade A | 100% Correct Q: Check for proper operating DC voltage, check for the absence of red on a phase that does not have green, yellow, or walk, check on a simultaneous are functions that are provided by both - Answer: CMU and MMU Q: What is the purpose of relays in a traffic signal system? Answer: to transfer the outputs from one component to another Q: What device minimizes the amount of voltage ...