inverse) of resistance. 1. Its angular frequency is _______radian/second. His passion for staying in touch with his profession and his kinship for mentoring has kept him in front of an audience of learners. A heater is rated at 230 V, 10 kW, A.C. An entire career in the power sector of engineering, Graham graduated from Queen's university coupled with subsequent studies with Wilfrid Laurier University to travel the globe and apply his skills and garner his protection and control experience internationally. The unit of conductance is Siemen or Mho and represented by the symbol of “G” or “℧”. 1.A sine wave has frequency of 50 Hz. In This poat, we are going to share Multiple Choice Questions (MCQ) on AC Fundamentals for Electrical Engineering Students. Chapter 1 Introduction 1.1Themes1 From its beginnings in the late nineteenth century, electrical engineering has blossomed from focusing on electrical circuits for power, telegraphy and telephony to focusing on a much broader range of disciplines. A basic knowledge of AC and DC circuits is becoming increasingly important – even in mechanical professions – for understanding many functions and processes in complex systems: this is what the equipment set, Basic Principles of Electrical Engineering for Metalworking Occupations, is targeted to. Please consider supporting us by disabling your ad blocker. The unit of capacitance is Farad “F” or microfarad “μF”. NPTEL provides E-learning through online Web and Video courses various streams. Step by Step Procedure with Calculation & Diagrams. The voltage of the domestic supply is 220V. The following table shows the current, voltage, power and resistance equations and formulas in DC and 1-Φ & 3-Φ AC circuits. How to Calculate/Find the Rating of Transformer in kVA (Single Phase and Three Phase)? a sinusoid of half the original frequency, both will reach their minimum values at same time, both will reach their maximum values at same time, when one wave reaches its maximum value, other will reach its minimum value. Where “L” is inductance in Henrys, “VL” is the instantaneous voltage across the inductor in volts and “di/dt” is the rate of changes in current in Amperes per second. Basic Fundamentals of AC Circuit Analysis. What are the two main types of transformers? Basic Electrical Engineering Formulas and Equations, Basic Voltage, Current, Power and Resistance Formulas in AC and DC Circuits. CTRL + SPACE for auto-complete. Where “f” is frequency in Hertz (Hz) and “T” is the time periods in seconds. current, voltage, power, resistance and impedance in both DC and AC circuits (single phase and three phase). It is also known as Ohm’s law for inductance. Learn how to plan and dimension your power distribution using this powerful (and free of charge) software from Siemens. The peak value of a sine wave is 200 V. Its average value is (a) 127.4 V (b) 141.4 V Your email address will not be published. Following are the electrical engineering formulas and equations for the basic quantities i.e. Step by Step Procedure with Solved Example, Electrical Wire & Cable Size Calculator (Copper & Aluminum), Active and Passive Frequency Filters – Formulas & Equations. Up tp 93% Off - Launching Official Electrical Technology Store - Shop Now! This includes working with AC power, power factor, resonance, complex numbers, reactance and impedance. AC Fundamentals MCQ Solve MCQ of AC Fundamentals ,here given lots of unique mcq for you.It can be very help full for your electrical engineering exam or competitive exams. Get Free Android App | Download Electrical Technology App Now! Where “Q” is the charge in coulombs, “C” is the capacitance in farads and “V” is the voltage in Volts. Electrical Engineering AC Fundamentals and AC Power ©, Rauf voltage, DC voltage and current were compared using an oscilloscope1, the graph displayed on the screen would be similar to voltage and current graphs shown in Figures 1.1 and 1.2, respectively. Alternating Current. If frequency is increased to 100 Hz, so reactance is_____ohms. Follow, © Copyright 2020, All Rights Reserved 2012-2020 by. This figure represents. It is the reciprocal (i.e. The final exam and certification are included. EE-Tools, Instruments, Devices, Components & Measurements, Other Additional Electrical Quantities Formulas, Power Formulas in DC and AC Single-Phase & Three-Phase Circuits, Electrical & Electronics Engineering Formulas & Equations, A Complete Guide About Solar Panel Installation. The reactance offered by capacitor to alternating current of frequency 50 Hz is 20 Q. How to Calculate the Battery Charging Time & Battery Charging Current – Example, How to Find The Suitable Size of Cable & Wire for Electrical Wiring Installation? – Examples in British and SI System, Thevenin’s Theorem. Where “C” is capacitance in farads,  “Q” is charge in coulombs, and “V” is voltage in volts. This course will provide the student with the basic understanding of working with circuits involving Alternation Current, which includes sinusoidal waveforms, vectors & phasors. Limited Edition... Book Now Here. ... EEP - Electrical Engineering Portal is the largest education study site specialized in fields of LV/MV/HV substations, energy & power generation, and distribution & transmission. Z = impedance = Resistance of AC Circuits in Ohms, Where “C” is capacitance in farads,  “Q” is. 2. resistive, captative and inductive circuit (already mentioned above). If two sinusoids of same frequency but of different amplitudes and phase angles are subtracted, then result is___, 8. The period of sine wave is 0.02 seconds. We depends on ad revenue to keep creating quality content for you to learn and enjoy for free. The value 230 V refers to, 7. XC = 1/2πfC… Where C = Capacitance in Farads. Following are the electrical engineering formulas and equations for the basic quantities i.e. Where “Z” is the impedance in ohms, “R” is resistance in Ohms and “X” is the reactances in Ohms. Chapter 3 - Reactance and Impedance RLC Circuits, Chapter 4 - Kirchhoff's Laws in AC Circuits. 5. Chapter 3 - Reactance and Impedance RLC Circuits. The unit of Inductance “L” is Henrys “H”. This course introduces the fundamental concepts of electrical direct current circuits, which form the basis to all electrical/electronic systems. Electrical Current Formulas in DC Circuit, Electrical Current Formulas in Single Phase AC Circuit, Electrical Current Formulas in Three Phase AC Circuit, Electrical Potential or Voltage Formula in DC Circuits, Voltage or Electrical Potential Formulas in Single Phase AC Circuits, Voltage Formulas in Three Phase AC Circuits, Power Formulas in Single Phase AC Circuits, Power Formulas in Three Phase AC Circuits, Electrical Resistance & Impedance Formulas in DC Circuits, Electrical Resistance & Impedance Formulas in AC Circuits, In AC Circuits (capacitive or inductive load), Resistance = Impedance i.e., R = Z. Impedance is the resistance of AC circuits i.e.

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