Purely resistive - Study guides, Class notes & Summaries

NCCER 26201-20 ALTERNATING CURRENT QUESTIONS AND ANSWERS FULLY SOLVED An electric current always produces ? A magnetic field The number or cycles an alternating electric current undergoes per second is known as ? Frequency What is the peak voltage in a circuit with an RMS voltage of 120 VAC ? 170 VAC Wich of the following conditions exist in a circuit of pure resistance ? The voltage and current are in phase In a purely resistive AC circuit where 240v is applied ...

An electric current always produces ? - ANSWER A magnetic field The number or cycles an alternating electric current undergoes per second is known as ? - ANSWER Frequency What is the peak voltage in a circuit with an RMS voltage of 120 VAC ? - ANSWER 170 VAC Wich of the following conditions exist in a circuit of pure resistance ? - ANSWER The voltage and current are in phase In a purely resistive AC circuit where 240v is applied across a 10 ohm resistor, the amperage is ? - ANSWE...

AC Theory Practice Questions and Answers | Latest Version | 2024/2025 | Graded A+ What happens to the voltage and current in a purely resistive AC circuit? In a purely resistive AC circuit, the voltage and current are in phase, meaning they reach their maximum and minimum values at the same time. What is the role of inductance in an AC circuit? Inductance in an AC circuit opposes changes in current by creating a magnetic field that induces a voltage opposite to the applied volt...

T/F: Current exists in an ideal capacitor only when its voltage is changing True T/F: In a series capacitor circuit, the largest value of capacitance will have the smallest amount of voltage dropped across it. True T/F: In a series capacitor circuit, the largest value of capacitance will have the largest share of total charge on its plates False T/F: Magnetic lines of force never cross one another True T/F: Current flowing through a conductor creates a magnetic fi...

Electrical shock can cause = Death AC is voltage or current waveform = Is called a sine wave A sine wave cycle = Is one variation of the sine wave form zero to maximum (positive) back to zero in one second is called Frequency The number of times this cycle occurs in one second = Is called frequency Frequency is expressed in = Hertz (Hz) The amplitude (range) of the sine wave is expressed as either = Voltage or current Common mathematical method of ...

Magnetic lines of force flow between _______ of a magnet - North Pole and South Pole Resistance is measured in which of the following: - Ohms In a three phase supply system, each phase is _______ with each other: - 120 degrees Power factor in a normal electrical circuit be ______: - Lagging In a series current which of the following quantity remains same: - Current Capacitors used in motors will be rated in _______: - Microfarads A 4 pole motor runs at ______ rpm: - 36...

For a given number of poles, which of the following determines the speed of an AC motor? Frequency The terminals of a motor can be identified using a battery and a(n) _____. voltmeter The stationary magnet of a DC motor is represented by the ______. field poles Any exposed live parts must be guarded if they are operating at ______. 50V or more between terminals The synchronous speed at which a four-pole, 60Hz induction motor operates is _____. 1,800rpm In ...

NCCER 26201-20 ALTERNATING CURRENT EXAM QUESTIONS AND ANSWERS An electric current always produces ? - ANS A magnetic field The number of cycles an alternating electric current undergoes per second is known as ? - ANS Frequency What is the peak voltage in a circuit with an RMS voltage of 120 VAC ? - ANS 170 VAC Which of the following conditions exist in a circuit of pure resistance ? - ANS The voltage and current are in phase In a purely resistive AC circuit where 240v is a...

LEVEL 2 MODULE 1 ALTERNATING CURRENTS QUESTIONS AND VERIFIED ANSWERS WITH RATIONALES COMPLETE AND WELL EXPLAINED 100% CORRECT ALREADY PASSED AND GRADED A+ LATEST UPDATE 2024 100%GUARANTEED SUCCESS AFTER DOWNLOAD (ALL YOU NEED TO PASS YOUR EXAMS} What is the step-down turns ratio of a transformer with 200 turns in the primary and 100 turns in the secondary? 2:1 Opening the secondary circuit of a current transformer under load will cause a dangerous level of induced high voltage What is the...

An electric current always produces ? - Answer A magnetic field The number or cycles an alternating electric current undergoes per second is known as ? - Answer Frequency What is the peak voltage in a circuit with an RMS voltage of 120 VAC ? - Answer 170 VAC Wich of the following conditions exist in a circuit of pure resistance ? - Answer The voltage and current are in phase In a purely resistive AC circuit where 240v is applied across a 10 ohm resistor, the amperage is ? - A...