• Basic Electrical Engineering

    Three Phase AC Circuits Viva Questions

    Three Phase AC Circuits Viva Questions Three Phase AC Circuits Viva Questions, Viva Questions on Three Phase AC Circuits, Basic Electrical Engineering Viva Questions, Short Answer Questions on Three Phase AC Circuits, Three Phase AC Circuits Viva Questions, Engineering Viva Questions Single Phase AC Circuits Viva Questions Short Answer Questions Q.1. What do you mean by a three-phase balanced load? Ans. Any three-phase load will be balanced when the loads (impedances) connected in three phases are the same in magnitude as well as in phase. Q.2. What is a three-phase unbalanced load? Ans. Any three-phase load will be unbalanced if impedances in one or more phases differ from the impedance(s)…

  • Basic Electrical Engineering

    Single Phase AC Circuits Viva Questions

    Single Phase AC Circuits Viva Questions Single Phase AC Circuits Viva Questions, Viva Questions on Single Phase AC Circuits, Short Answer Type Questions on Single Phase AC Circuits, Engineering Viva Questions, Basic Electrical Engineering Viva Questions, Single Phase AC Circuits Viva Questions. Three Phase AC Circuits Viva Questions Short Answer Type Questions with Answers Q.1. What is the phase relationship between the supply voltage and current flowing through a purely resistive circuit? Ans. Both supply voltage and circuit current are in phase with each other. Q.2. What is the phase relationship between the supply voltage and current flowing through a purely inductive circuit? Ans. In a purely inductive circuit, current…

  • Basic Electrical Engineering

    Electrical Circuit Analysis Viva Questions

    Electrical Circuit Analysis Viva Questions Electrical Circuit Analysis Viva Questions, Viva Questions on Electrical Circuit Analysis, Short answer type questions on Electrical Circuit Analysis, Engineering Viva Questions, Basic Electrica Engineering Viva Questions. Short Answer Type Questions with Answers Q.1. What is electric current? Ans. The controlled movement of electrons (or drift) through a substance, is called the elect current. Q.2. What is the difference between emf and potential difference? Ans. EMF (electromotive force) is the force that causes a current to flow in an electric circuit while the potential difference between any two points in an electric circuit is that different in their electrical state which tends to cause the…

  • Basic Electrical Engineering

    Alternating Voltage or Current Viva Questions

    Alternating Voltage or Current Viva Questions Alternating Voltage or Current Viva Questions, Sinusoidal Voltage or Current Viva Questions, Alternating Voltage Viva Questions, Alternating Current Viva Questions, Electronics Viva Questions Short Answer Type Questions with Answers Q.1. What is the difference between AC and DC? Ans. A current is called alternating if it periodically changes its direction and magnitude whereas direct currents are steady and flow in one direction only. Q.2. Why sinusoidal wave shape is insisted for voltages and currents while generating, transmitting, and utilizing ac electric power? Ans. Sinusoidal wave shape is insisted for voltages and currents while generating, transmitting, and utilizing ac electrical power because it has the…