2. CTRL + SPACE for auto-complete. The unit of Inductance “L” is Henrys “H”. 1.A sine wave has frequency of … Our website is made possible by displaying online advertisements to our visitors. Chapter 2 - Vectors and Phasors. Where “f” is frequency in Hertz (Hz) and “T” is the time periods in seconds. In This poat, we are going to share Multiple Choice Questions (MCQ) on AC Fundamentals for Electrical Engineering Students. If two sinusoids of same frequency but of different amplitudes and phase angles are subtracted, then result is___, 8. This course introduces the fundamental concepts of electrical direct current circuits, which form the basis to all electrical/electronic systems. 1. 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. resistive, captative and inductive circuit (already mentioned above). Write CSS OR LESS and hit save. Basic Voltage, Current, Power and Resistance Formulas in AC and DC Circuits. Chapter 3 - Reactance and Impedance RLC Circuits. Alternating Current. ... EEP - Electrical Engineering Portal is the largest education study site specialized in fields of LV/MV/HV substations, energy & power generation, and distribution & transmission. The reactance offered by capacitor to alternating current of frequency 50 Hz is 20 Q. The value 230 V refers to, 7. A heater is rated at 230 V, 10 kW, A.C. 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. Your email address will not be published. Following are the electrical engineering formulas and equations for the basic quantities i.e. This course will provide the student with the basic understanding of working with circuits involving Alternation Current, which includes sinusoidal waveforms, vectors & phasors, reactance & impedance of R,L,C circuits, as they relate to the basic laws and theorems of electricity. The period of sine wave is 0.02 seconds. This includes working with AC power, power factor, resonance, complex numbers, reactance and impedance. The student should have an understanding of the basic terms of electricity and AC circuits. 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. Get Free Android App | Download Electrical Technology App Now! Basic Fundamentals of AC Circuit Analysis. XC = 1/2πfC… Where C = Capacitance in Farads. The unit of conductance is Siemen or Mho and represented by the symbol of “G” or “℧”. 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. This course will provide the student with the basic understanding of working with circuits involving Alternation Current, which includes sinusoidal waveforms, vectors & phasors. Please consider supporting us by disabling your ad blocker. Where “C” is capacitance in farads, “Q” is charge in coulombs, and “V” is voltage in volts. The peak value of a sine wave is 200 V. Its average value is (a) 127.4 V (b) 141.4 V Multiple Choice Questions (MCQ) on AC Fundamentals for Electrical Engineering. This figure represents. It is the reciprocal (i.e. 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. current, voltage, power, resistance and impedance in both DC and AC circuits (single phase and three phase). – Examples in British and SI System, Thevenin’s Theorem. Various Cooling Methods of electrical machines. Following are the electrical engineering formulas and equations for the basic quantities i.e. The unit of capacitance is Farad “F” or microfarad “μF”. This course will provide the student with the basic understanding of working with circuits involving Alternation Current, which includes sinusoidal waveforms, vectors & phasors. Z = impedance = Resistance of AC Circuits in Ohms, Where “C” is capacitance in farads, “Q” is. Where “Q” is the charge in coulombs, “C” is the capacitance in farads and “V” is the voltage in Volts. Up tp 93% Off - Launching Official Electrical Technology Store - Shop Now! Where “Z” is the impedance in ohms, “R” is resistance in Ohms and “X” is the reactances in Ohms. 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.