Circuit current Samenvattingen, Aantekeningen en Examens

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...

Type ____ is multiconductor cable identified for use as underground service entrance cable. correct answer: Type USE cable Knife switch rated for more than 1200 Amps at 250Volts or less correct answer: Can be used only as isolating switch, shall not be opened under load Track lighting with outlets in a bathroom is not allowed because ? correct answer: Track lighting has receptacle Where internal combustion engines are used as the prime motor, an on site fuel supply shall be provided ...

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 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...

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...

What is the result if the neutral wire becomes open on a multiwire circuit having unequal loads? Select one: a. The load of higher resistance would overheat and probably be damaged. b. The load of lesser resistance would overheat and probably be damaged. c. No effect until one load is turned off or opens. d. No effect. The load of higher resistance would overheat and probably be damaged. Refer to Figure 128.202. ___ volts are applied across the water heater element. S...

NEIEP 800 Final Exam Version 2 (Latest 2024 / 2025 Update) Questions and Verified Answers | 100% Correct | Grade A Q: With wye-delta, reduced current starting is accomplished without the need for _____. Answer: resistors Q: _____ run buttons should run the platform and sling at leveling speeds only. Answer: Temporary Q: A _____ _____ consists of a piston held closed by an adjustable spring and must open at a certain pressure to prevent any further increase in pressure. Answer: relief valve Q: A ...

NETA III 2023-2024 Exam Questions with Correct Answers The alternate source for emergency systems are required to be equipped with ground-fault protection of equipment. - ANSWER False Which ANSI/IEEE standard covers SF6 circuit breakers? - ANSWER C37.04 You measure the winding resistance of a 12.4kV, 1000kVA, Delta-Delta connected transformer with a 100A test set. H1-H2 measures 42.0 microhms, H2-H3 measures 41.9 microhms, and H3-H1 measures 84.0 microhms. What can you conclud...

NEIEP 700 Final Exam Version 2 (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What is the primary reason AC relays hum or chatter? Answer: AC cycle reversal Q: Which of the following best describes the contact rating of a magnetic switch? Answer: The maximum voltage and current that can be safely interrupted Q: How can you reduce contact arcing on plug-in relay contacts? Answer: Wire two contacts of the same relay in series ...